What is the correct definition of a set in fitness? ability to exert force

a muscle contraction

one group of repetitions

an hour of exercise

Explain what you know about the cause of mental illnesses.

First to answer will be the brainliest i need the answer asap

Which if the following is one of the goals for healthy people initiative? a. to eliminate all disease b. to eliminate health disparities among americans c. to eliminate quality and years of healthy life d. both b and c