The immune system is the body's first line of defense against pathogens.
Answer:
d.
People who are depressed may sometimes feel depressed for no apparent reason
Answer:B.
Explanation:Option A would not be an affective coping mechanism and neither would C.
Answer:
They may fade over time, but it depends on how deep the original scar was in that case it may be permanent.
Explanation:
You might want to try using products that have vitamin C, Azelaic acid or hydroquinone. Or try things that work for your skin type.
Good luck, I hope I helped. <3