We rarely perceive more than a minute（）of the sights and sounds that fall upon our sense organs; the great majority pass us by.

A. Work plays an important part in our general lifestyle.
B. It is very possible that game will replace work as the most important part in our life.
C. People are divided into social classes in accordance with types or work they do.
D. Game players know how to get the most fun and enjoyment out of our leisure time.

A. identified
B. recognized
C. acknowledged
D. acquainted