Question

read dylans topic sentence for a paragraph: first of all, exercise is good for your bone health. _? which supporting detail should dylan use? if you dont exercise very often, you are not likely to lose much weight. exercising regularly has been shown to increase bone mass, making stronger bones. exercise may be hard at times but it is an incredibly important part of a healthy lifestyle.

Explanation:

The topic - sentence is about exercise being good for bone health. The first option is about weight loss related to exercise, not bone health. The third option is a general statement about exercise being important for a healthy lifestyle, not specifically about bone health. The second option directly states that regular exercise increases bone mass, which supports the topic - sentence about bone health.

Answer:

Exercising regularly has been shown to increase bone mass, making stronger bones.