The Correct Answer is Option C: Tropical Rainforests

Explanation:
Insects are the most diverse group of animals on Earth, with over a million known species. They can be found in almost every habitat on the planet, but certain habitats are more favorable for insect diversity than others. Tropical rainforests are one such habitat that supports an incredibly high number of insect species. Below are the reasons why tropical rainforests are home to a large percentage of the world's insect species:

1. Climate:
Tropical rainforests are characterized by high temperatures and abundant rainfall throughout the year. This warm and humid climate provides an ideal environment for insects to thrive. The constant availability of moisture and warmth allows for year-round breeding and rapid population growth, leading to increased species diversity.

2. Abundant Food Resources:
Tropical rainforests are known for their immense biodiversity, with a wide variety of plants and trees. This rich plant diversity provides an abundant food supply for insects. Insects have evolved to feed on different parts of plants, including leaves, fruits, nectar, and sap, allowing them to occupy various niches within the rainforest ecosystem.

3. Complex Ecosystem:
Tropical rainforests are highly complex ecosystems with multiple layers of vegetation, including the canopy, understory, and forest floor. Each layer offers unique microhabitats and resources for insects. The diverse range of microhabitats within the rainforest allows insects to occupy different ecological niches, leading to the coexistence of numerous species.

4. Lack of Seasonality:
Unlike temperate forests, tropical rainforests do not experience distinct seasons. This lack of seasonality provides a stable environment for insects, allowing them to reproduce and survive throughout the year. Insects in temperate forests often have to adapt to seasonal changes, such as cold winters or hot summers, which can limit their diversity.

5. Evolutionary History:
Tropical rainforests have existed for millions of years and have been relatively stable in terms of climate and vegetation. This long period of stability has allowed insects to diversify and adapt to specific niches within the rainforest ecosystem. Many insect species in tropical rainforests have evolved unique adaptations, such as specialized feeding behaviors or camouflage, which further contribute to their high diversity.

In conclusion, tropical rainforests provide the ideal combination of climate, abundant food resources, complex ecosystems, lack of seasonality, and evolutionary history, making them a hotspot for insect diversity.