I think the answer is #4: a low risk for weight-related diseases. 0.70 is the ideal weight so that seems like the most logical answer.
bthe mooningcorrect answer
B. Preventing heart attacks.
"Aspirin interferes with your blood's clotting action. ... Then, a blood clot can quickly form and block the artery. This prevents blood flow to the heart and causes a heart attack. Aspirin therapy reduces the clumping action of platelets — possibly preventing a heart attack."