In Bowling Alone, Robert Putnam Argues That Over That Last

In Bowling Alone, Robert Putnam argues that over that last 50 years…

A) fewer people have joined bowling leagues.
B) there has been an increase in every kind of activity that involves personal contact.
C) there has been a decrease in every kind of activity that involves personal contact.
D) that increased use of technology has enhanced people's ability to stay in personal contact.