d. Both (a) & (b)
Answer: a. Tropics
Explanation: A tropical rain forest is a biome that occurs in regions with high temperatures and high rainfall. This includes places in Central America, South America, Africa, South East Asia. This is evident in the multi-striped vegetation. In addition the abundance of biodiversity on earth is reflected in this biome and it is estimated that one to two thirds of all earth’s species of plants and insects live in this. Production is high and there is a small temperature change.