Sometimes nightmares happen because of what happened on the day before you went to sleep, you might’ve been stressed, you watched a horror movie, or you might have been really scared of something, nightmares also happen because you thought about a lot of creepy things or things that would frighten you before you fell asleep.
OK so for this one flexibility programs are designed for all ages because you can stretch and do any kind of exercise that involves stretching so the best choice is option D.
A. Muscular
Hope this helps!! Good luck :)
