With no explanation, chose the best option from "A" or "B". Kramer is in charge of training a new guy, Harry to use the PC at work. Kramer wants to explain how to log in.

A: Kramer shows Harry how to get into the PC, Harry fails to understand, so Kramer explains it in simpler terms.
B: Kramer shows Harry how to get into the PC, but when Harry fails to understand, he is mocked.
A.