~Takumi works in his yard for 45 minutes each Saturday. He works in the morning, and he wears sunscreen and a hat each time he works in the yard.~

~What does Takumi hope to reduce through his actions?~

A. the likelihood of stochastic effects, such as DNA mutations
B. the severity of stochastic effects, such as cancer
C. the severity of non-stochastic effects, such as cancer
D. the likelihood of non-stochastic effects, such as radiation sickness