Yes, it is the appropriate sink for her to wash her hands because because she will be washing dishes in the same sink.
Basically, a food-worker is expected to ensure his/her hand are clean before proceeding to wash plate in the sink because her hand can carry dangerous dirt to the unwashed plated.
Hence, the answer is yes because it is the appropriate sink for her to wash her hands because because she will be washing dishes in the same sink.
Therefore, the Option A is correct.
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