For the Following Question(s): a Researcher Is Interested in a New

Multiple Choice

For the following question(s) : A researcher is interested in a new kind of exercise. This new exercise can be done by anyone because it does not require any equipment, and therefore could be potentially beneficial without cost to the person. The researcher is interested in whether this new exercise will reduce the rate of heart attacks in the people who participate in doing it.
-What is the comparison distribution?

A) The distribution of those who participate in the exercise program.
B) The distribution of those who do not participate in the exercise program.
C) The distribution of those who have heart attacks.
D) The distribution of those who do not have heart attacks.