Your friend jessica calls to tell you she went to see dr. reilly and he recommended she have a cystoscopy. jessica tells you a family friend had a cystoscopy in the past and had colon polyps removed. she is concerned because she doesn’t believe she needs surgery when she hasn’t even been diagnosed with anything yet

Intestinal polyps are benign tumors of the colon and rectum. These growths are formed at the inner wall of the colon, at the level of the mucosa. There are several types of polyps: some do not evolve and will always remain benign (hyperplastic polyps, hamartomatous polyps, and inflammatory polyps) and others are likely to evolve into cancerous tumors (adenomatous polyps, also called adenomas).

Adenomatous polyps or adenomas are precancerous lesions representing approximately 70 to 75% of polyps. They are likely to progress to colon cancer.
Intestinal polyps are removed when they are detected to prevent an eventual colon cancer.

Ibelieve the answer is relative humidity  because it makes more sense that way. solar flares usually occur in space it doesn't affect the earth, well it could but it wont make a significant damage.  latitude is land it doesnt do anything. prevailing winds, i dont know the correct meaning for this but i doubt that affects the land so it has to be relative humidity.