Answer the following question given this paragraph: 

Genes play an important role in determining an organism's traits. However, for many traits, phenotype is influenced by the environment as well. For example, skin color is controlled by genes but also influenced by exposure to sunlight. You can see the effect of sunlight on skin in Figure below .


Q: Skin color is controlled by genes but also influenced by exposure to what?

 Choices:

- food

- precipitation

- makeup

- sunlight

A:
sunlight
