According to the Text,what Did Surveys of Canadian Teenagers from 1996

According to the text,what did surveys of Canadian teenagers from 1996 to 2005 find?

A) an increase in the proportion of teens who said they'd had sex at least once
B) an increase in the number of young women who said they'd had sex at least once
C) a decline in the number of young men who said they'd never had sex
D) a decline in the proportion of teens who said they'd had sex at least once