In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
Q: [header] How to treat herpes [title] Get an accurate diagnosis from your doctor. [step] Herpes blisters are small, red, and filled with a yellowish fluid. Small blisters can cluster together and grow into a larger blister. <sep> (A) Your doctor may be able to determine which part of your body has herpes. [substeps] If your doctor suspects a herpes infection, they may refer you to an exterminator. (B) To rule out other causes, have your doctor examine the blisters and, if necessary, take a viral culture. [substeps] Herpes virus type 1 usually causes blisters around the mouth, and herpes virus type 2 usually causes genital outbreaks. (C) The fluid may begin to look red or become clear. [substeps] Ask your doctor which wart species the blister is from. (D) If you have whiteheads, cysts, split eggshells, or lesions on the skin, these are likely from herpes. [title] Get a high risk and singular diagnosis for herpes.
A:
B