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 choose your best clothing colors [title] Determine your skin's undertone. [step] You will want to mostly stick to colors that match your undertone. While there are many different skin tones, there are only two undertones: warm and cool. <sep> (A) Warm skin has a yellow or orange tint, while cool skin has a blue or pale pink one. There are two main ways to figure out which category applies to you. (B) Warm skin tends to be brighter and brighten during the winter season, while cool colors tend to be heavily winter-heavy. Pick colors that complement your skin's undertone, rather than any other. (C) The warm undertones are what give you the brightest complexion--the warm undertones mimic aging, and the cool undertones mimic aging. [substeps] If you have an undertone, experiment with different accessories. (D) [substeps] Be sure that your skin's undertone is within one of two categories: warm and cool. There are many different skin tones, including warm and cool.
A:
A