There is only one kingdom in the two kingdom classification system, which is Plantae, and one kingdom in the five kingdom classification system, which is Monera, that becomes more homogenous. Therefore, the correct answer is (A) Protista and Monera.

Two Kingdom Classification:
In the two kingdom classification system, all living organisms were classified into two kingdoms: Plantae (plants) and Animalia (animals). This system was proposed by Carolus Linnaeus in the 18th century. However, this classification system had several limitations and did not adequately represent the diversity of living organisms.

Five Kingdom Classification:
To overcome the limitations of the two kingdom classification system, Robert Whittaker proposed the five kingdom classification system in 1969. In this system, living organisms are classified into five kingdoms based on their characteristics and evolutionary relationships. The five kingdoms are:

1. Monera: This kingdom includes prokaryotic organisms such as bacteria and blue-green algae. These organisms are unicellular and lack a true nucleus and membrane-bound organelles.

2. Protista: This kingdom includes eukaryotic organisms that do not fit into the other four kingdoms. It includes various unicellular organisms such as protozoans, algae, and slime molds.

3. Fungi: This kingdom includes eukaryotic organisms that obtain nutrients by decomposing organic materials. They are multicellular and have a cell wall made of chitin.

4. Plantae: This kingdom includes eukaryotic organisms that are photosynthetic and have a cell wall made of cellulose. It includes plants ranging from simple mosses to complex flowering plants.

5. Animalia: This kingdom includes eukaryotic organisms that are multicellular and heterotrophic. They lack a cell wall and have specialized tissues and organs.

Explanation:
In the two kingdom classification system, the organisms were classified solely into Plantae and Animalia based on their characteristics. However, in the five kingdom classification system, the organisms are classified into more specific kingdoms based on their characteristics and evolutionary relationships. This leads to a more homogenous classification within each kingdom.

In the case of Protista, this kingdom includes a wide range of unicellular eukaryotic organisms that do not fit into the other four kingdoms. By separating them into a distinct kingdom, the classification becomes more homogenous within Protista.

Similarly, in the case of Monera, this kingdom includes prokaryotic organisms such as bacteria and blue-green algae. By separating them into a distinct kingdom, the classification becomes more homogenous within Monera.

Therefore, the five kingdom classification system provides a more detailed and homogenous classification of organisms compared to the two kingdom classification system.