I believe the correct answer is B. Spread by contact.
Essential amino acids differ from non-essential amino acids because essential amino acids cannot be made by the body, but instead, you must get them from your diet (your eating habits). On the other hand, non-essential amino acids are created by the body. You need both amino acids in order for the body to build the wide variety of proteins it needs to survive. Hope this helped and have a great day!
The correct answer to this is C over scheduling
Some of the reasons can be:
If you're a pre-teen or a teenager who has only started menstruating, you may find that it takes a while for your period to settle in and become regular.
I couldn't think of anything else, but hope this helped enough!
To find the best answer, ask your mom!
~Aurora
