High schools should only teach abstinence. Students who practice abstinence will never experience an unplanned pregnancy or contract a sexually-transmitted disease. Each of the following weakens the argument EXCEPT:
A: Religious organizations support the teaching of abstinence.
B: Students are less likely to follow teaching about abstinence than safe sex.
C: Failing to teach about contraceptives increases the spread of sexually-transmitted diseases.
D: The percentage of students engaging in abstinence is lowest in school districts that only teach abstinence.
Choose A, B, C or D as your solution.
A