What is an example of a main claim supported by multiple sub-claims?

The statement "Exercise improves overall health" stands out as a main claim because it serves as a broad assertion that can be substantiated by a variety of specific sub-claims. For instance, one could support the main claim by citing sub-claims such as "Regular exercise helps maintain a healthy weight," "Exercise reduces the risk of chronic diseases," and "Physical activity enhances mental health." Each of these sub-claims provides distinct evidence that reinforces the overarching idea that exercise is beneficial to overall health.

In comparison, the other choices present claims but do not inherently suggest multiple supporting arguments within their structure. While eating balanced meals, reading, and having pets can offer potential benefits, these statements don't automatically imply the presence of further sub-claims that would thoroughly back up the main idea as demonstrated in the first option. Thus, the selected answer serves as an excellent example of how a broad main claim can effectively encompass and be strengthened by various supporting sub-claims.