Respuesta :
The answer is C, because it is the only one that is Biotic = relating to or resulting from living things.
A biotic factor in a tropical rainforest is a population of decomposers.
What do you mean by Biotic factors?
Biotic factors may be defined as those factors which are associated with living entities. These include producers, herbivores, carnivores, and decomposers.
Rainfall, temperature, air quality (wind), stream, and fire are examples of abiotic factors.
Therefore, a biotic factor in a tropical rainforest is a population of decomposers.
To learn more about Decomposers, refer to the link:
https://brainly.com/question/380333
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