In the Massive Antismoking Campaign in China in 1989, the Results

In the massive antismoking campaign in China in 1989, the results indicated that of the 10,000 fathers
In the intervention group quit smoking for at least 6 months in comparison to a control group of 10,000 in which only quit smoking.

A) 1%; 0.1%
B) 12%; 0.2%
C) 22%; 2.2%
D) 50%; 25%