What is The function of the adenoids

Occasionally, an X-ray is done to determine the size of the adenoids. Like tonsils, adenoids help to defend the body from infection. They trap bacteria and viruses which you breathe in through your nose. They contain cells and antibodies of the immune system to help prevent throat and lung infections.

answer; the correct answer is (beta)

the correct answer, according to e2020, is the second choice there is an occluded front in region a and a cold front in region b.