Based on the passage, how many of one hundred and twenty American couples of the beat generation practiced cohabitation

A．The beat generation's refused to do any duty.
B．The beat generation was in support of almost everything traditional.
C．The beat generation believes no one except that he is over thirty.
D．The beat generation's ideas were not impractical.

A．The man is learning how to use a computer.
B．The woman is showing the man how to put page numbers on a document.
C．The man is printing a document.
D．The man is using his computer to do mathematical functions.