This is a test of commonsense with single/multi-choices. Complete the next sentence:

The surgeon then rubs the palms together and builds a lather. He then rubs back of hand with palm. the surgeon

Pick from: a). then uses a cleaning solution on the area to dry.. b). then rubs the back of fingers with hands.. c). then washes his paper cut palms and puts it back.. d). then pours clean stone on the palms of his hands and rubs the cream on it..
The answer is:
b).