Q: 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".
[header] How to prepare skin for a chemical peel [title] Refrain from any other chemical peels. [step] In the two weeks leading up to a chemical peel, it is imperative that you refrain from having any other chemical peel treatments. If it has been less than two weeks since your last chemical peel, you should wait until at least 14 days have passed. <sep> (A) [title] Avoid microdermabrasion treatments. [step] Microdermabrasion treatments work similar to chemical peels, except this treatment uses a gentle abrasive tool to peel off the outer layer of skin. (B) Prior to these two weeks, any peel, lotions, liposuction, or any other chemical peel therapy can be stopped. During this time, discontinue any chemical peels that are done in preparation for the chemical peel. (C) [substeps] If your skin has been diagnosed with dermatitis or some other form of cancer, you need to fully rest and recover before touching your skin. Do not apply the chemical peel until it has been completely healed. (D) [substeps] Additionally, you should also refrain from trying a chemical peel if you have a condition called parvo. You have only 21 days to complete the chemical peel with parvo.
A:
A