【填句补文】Children think that being grown up means being able to do exactly as they please. ________. The chance to discover whether that freedom is as wonderful as it sounds is a chance more and more Americans are taking.
A
It's now socially acceptable, even fashionable, to live alone.
B
The number one reason given by most people for living alone is that they simply enjoy doing what they want when they want to do it.
C
Living alone is a luxury.
D
It seems that many grown-ups today are realizing that childhood dream.