Question

what is the main reason some people dont stretch before exercising?
○ they dont know they should stretch.
○ they are young.
○ they dont like to stretch.
○ they dont need to stretch.

Explanation:

Among the options, "They don't know they should stretch" is a plausible main reason as lack of knowledge about the importance of stretching before exercise can lead to people skipping it. Age ("They are young") is not a valid reason as people of all ages should stretch. Disliking stretching ("They don't like to stretch") or thinking they don't need to ("They don't need to stretch") are less likely to be the main reason compared to lack of awareness about the need to stretch.

Answer:

A. They don't know they should stretch