Given the task definition and input, reply with output. 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".

A doctor went inside the room, then she wash her hands, wipe her hands with paper towel. a medical practitioner <sep> (A) is washing her hand with soap and water, while the other medical practitioner in white coat is on her phone. (B) cleaned her hands with paper towel, then put paste in powder. (C) stroke her hands with the paper towel to clean the palms and the nails, after she knob the cloth. (D) speaks, then she proceeds to take off a contact lens from her eye, the eye socket of her left eye is removed, and then the contact lens is put back in.
A