What Would Be the BEST Advice to Give Someone Who

Multiple Choice

What would be the BEST advice to give someone who wants to retain good cognitive functioning as long as possible in old age?

A) "Be sure to get mineral supplements, especially zinc and aluminum-and take it easy, to avoid injury."
B) "Disengage a little-don't let the world news upset you-and avoid caffeine and other stimulants."
C) "Get a pet-caring for something else helps-and avoid eyestrain by reducing your reading."
D) "Exercise your body and your mind-use it or lose it."