Which is the most efficient way to avoid dna mutations from uv radiation?
a. avoid getting x-rays at the doctor’s office.
b. avoid protective shields during x-rays.
c. avoid uv radiation by wearing sunscreen.
d. avoid uv radiation by using a tanning bed.

C is the correct answer. A and B are incorrect because X-rays are a different type of electromagnetic wave to UV rays, so avoiding X-rays will have little effect on UV-induced mutations. Tanning beds still emit UV radition, so you cannot avoid UV by using tanning beds. Sunscreen is one of the best forms of protection against UV rays.