Pls help with this it really easy also don’t worry about the dot I didn’t mean to press it

I think B, some bone ailments are congenital

The second one

Explanation:

one of the most common forms of pain or discomfort we feel during strenuous exercise is a burning sensation in our lungs or muscles that goes away shortly after we cease the activity. this is caused by a build-up of lactic acid.

there’s no image attached but i can if you want: )