Answer:
Bones
Explanation:
The integumentary system is the skin. You have erector pilli muscles, blood vessels and nerves all within the skin. But not bone
B. Promptly leave
Hope this Helps!
I am not sure what you asking, but since Justin doesn't want to go to the graduation party because he know he going to be embarrass from not gradating with the rest of his friends.
Just macroanatomy right?
I would say A, as the only answer.
Hope that helps,
