Halyna Is a College Sophomore Who Enjoys Sun Tanning

Halyna is a college sophomore who enjoys sun tanning. When is she most likely to begin to protect herself from the harmful effects of the sun?

A) When she is exposed to two-sided arguments about exposure to the sun.
B) When she is warned about the risks to her appearance (e.g., wrinkling of her skin) from the sun.
C) When she is warned about the risks to her health from the sun.
D) All of these.