"In Dealing with Alzheimer's Disease, Exercise Is the Key," Says

Multiple Choice

"In dealing with Alzheimer's disease, exercise is the key," says a friend of yours. Which statement would be your BEST reply?

A) "You're right-exercise may reduce the chances of developing Alzheimer's, and it may help treatment if the disease does develop."
B) "You're partly right-exercise may reduce the risk of developing Alzheimer's, but it doesn't help much with treatment if the disease develops."
C) "You're partly right-exercise does not reduce the chances of developing Alzheimer's, but it may help treat the disease if it does develop."
D) "Not really-exercise does not reduce the chances of developing Alzheimer's, and it doesn't help much with treatment if the disease develops."