One can get a sunburn even__________ 查看材料A.when it

One can get a sunburn even__________ 查看材料

A.when it is absorbed by matter

B.when it is cloudy

C.because they can pass through solid objects

D.when the sunrays are fierce

E.when a change in the nucleus of an atom takes place

F.when electron rearrangement takes place

请帮忙给出正确答案和分析，谢谢！