Q: What is the leading cause of skin cancer?


Read this paragraph and choose the correct option from the provided answers:

Forms of radiation that cause cancer include ultraviolet (UV) radiation and radon ( Figure below ). UV radiation is part of sunlight. It is the leading cause of skin cancer. Radon is a natural radioactive gas that seeps into buildings from the ground. It can cause lung cancer.

 Choices:

- artificial light

- dehydration

- smoking

- sunlight


A:
sunlight