Introduction:
Adaptive radiation is a process in which a single ancestral species gives rise to multiple new species that occupy different ecological niches. This phenomenon occurs when a population of organisms diversifies and adapts to different environments or resources. Adaptive radiation is a significant mechanism of evolution and can lead to the formation of new forms and species.

Explanation:
The correct answer is option 'A' - Convergent evolution. Here's an explanation of why adaptive radiation does not confirm convergent evolution and why it confirms the other options:

1. Convergent evolution: Convergent evolution refers to the independent evolution of similar traits or adaptations in unrelated species. It occurs when different species face similar environmental pressures and develop similar traits to survive. For example, the wings of birds, bats, and insects are not homologous structures, but they have evolved independently to perform similar functions.

- Why it is not confirmed by adaptive radiation: Adaptive radiation leads to the evolution of new forms and species that are adapted to different ecological niches. It results in the divergence of species with distinct traits and adaptations, rather than the convergence of traits seen in convergent evolution.

2. Homology: Homology refers to the presence of similar structures or traits in different organisms due to their shared ancestry. Homologous structures are derived from a common ancestor and may have different functions in different species.

- Why it is confirmed by adaptive radiation: Adaptive radiation can lead to the formation of homologous structures with different functions in different species. For example, the forelimbs of vertebrates, such as the wings of birds and the arms of humans, are homologous structures that have evolved for different purposes.

3. Divergent evolution: Divergent evolution refers to the accumulation of differences between related species that share a common ancestor. It occurs when populations of a species become isolated and adapt to different environments, leading to the formation of new species.

- Why it is confirmed by adaptive radiation: Adaptive radiation is a prime example of divergent evolution. It occurs when a single ancestral species diversifies into multiple new species that occupy different ecological niches. These new species evolve distinct traits and adaptations to survive in their respective environments.

4. Evolution of new forms: Adaptive radiation is a mechanism through which new forms and species evolve. It happens when a population colonizes new habitats or niches, and natural selection drives the divergence and specialization of different lineages.

- Why it is confirmed by adaptive radiation: Adaptive radiation is characterized by the evolution of new forms and species that are distinct from their common ancestor. This process allows organisms to exploit new resources or habitats, leading to the formation of diverse and specialized lineages.

Conclusion:
In conclusion, adaptive radiation does not confirm convergent evolution, as it leads to the divergence and specialization of different lineages rather than the convergence of similar traits or adaptations. However, it confirms the other options - homology, divergent evolution, and the evolution of new forms - as it results in the formation of homologous structures with different functions, the divergence of related species, and the evolution of new forms and species.