Answer:
C.By fluid being trapped in the middle ear
Explanation:
If had one before after swimming and the doctor said that some of the chlorine water got stuck in my ear which cause the infection.
I think it would be E because it is unsafe to have your contact information public
Okay, warning: (COULD BE WRONG) Just to help you out I think 3, 5, and 6, are correct. (COULD BE WRONG, YOU MIGHT GET A LITTLE CREDIT)
C. it monitors calorie intake as a way to maintain a balance of energy
What language do you speak? If you can translate into English i can help you