It’s C. I just recall hearing my teacher say that... sorry I have no explanation
The chemistry of the nitrogenous bases is really the key to the function of DNA. It allows something called complementary base pairing. You see, cytosine can form three hydrogen bonds with guanine, and adenine can form two hydrogen bonds with thymine.
Answer:
B is the correct answer i believe
The correct answer for this question would be letter choice A) at the poles or the first option.