The most common dangerous weapon is:
a. a belt.
b. a flyswatter.
c. a bat.
d. the hand.

I'd have to say d. the hand, because every human (for the most part, no offence intended to anyone) has a hand and is able to make good (or bad, rather) use of it. It's what a person always has access to at any given time or place, even if they don't have access to one of the other options. 

Whats important is to eat healthy food to prevent heart disease. another why not to get heart disease is to always exercise in a timely manner. lastly, always stay active and go to the doctor for checkups just in case.

C.1960s and 1970s hope it's right