问题详情

By saying that "they are cultural commas and semicolons ..." the author means that commas and semicolons ______.
A．can be interpreted as subculture of American life
B．can be identified as various ways of American life
C．stand for work and rest in American life
D．are preferred in writing the stories concerning American life请帮忙给出正确答案和分析，谢谢！