When is it NOT necessary for a person to wear sunscreen during a recreational activity? A. when it's cWhen is it NOT necessary for a person to wear sunscreen during a recreational activity? A. when it's cold outside B. when it's not a sunny day C. when the activity is shaded by trees D. when the activity is indoors old outside B. when it's not a sunny day C. when the activity is shaded by trees D. when the activity is indoors