B. (2 pts) Consider the following scenario: There are n people in a room. The first person shakes hands with all the others in the room and then exits the room. The next person does the same, and so on until everyone has left the room. We like to calculate what is the total number of handshakes. Explain why the total number of handshakes is equal to the total number of times the following code prints shake 1-1 while i>n: ji+1 while j