Which sentence exemplifies a claim?

A claim is a statement that asserts a point of view or belief that can be supported with evidence or argumentation. In the context of this question, the sentence "Exercise is beneficial for physical health" makes a clear assertion that can be debated, supported with research or examples, and can influence opinions about the importance of exercise. This is what qualifies it as a claim.

The other sentences present statements that could also be considered claims but are more general or less assertive in nature. For instance, "Many students find math challenging" is more of an observation than an assertive claim, as it does not explicitly advocate for a perspective. Similarly, "Reading expands knowledge and vocabulary" and "Art enhances cultural appreciation" express benefits or effects of reading and art but do not establish a point of view in the same definitive way as the selected sentence about exercise. Thus, the chosen sentence stands out as the most direct claim about the benefits of exercise.