Question

which of the following is a piece of evidence that supports the following claim? exercise is the best way to end heart disease.
a recent study shows that 90% of those that exercise have reduced heart disease.
exercise is fun.
running is a type of exercise.

Explanation:

The claim is that exercise is the best way to end heart disease. Evidence should link exercise to reduced heart disease. The first option provides a study result showing 80% of exercisers have reduced heart disease, directly supporting the claim. The other options are irrelevant (fun nature of exercise) or descriptive (running as a type of exercise) and do not support the causal link to ending heart disease.

Answer:

A recent study shows that 80% of those that exercise have reduced heart disease.