All of the statements below except one are correct. Which statement is NOT correct?

a) The incidence of STDs has increased over the past 30 years.
b) The barrier methods of contraception (such as condoms) provide complete protection against STDs.
c) About 16% of the adult population in the United States is infected with genital herpes.
d) Some bacterial STDs, like gonorrhea, are becoming antibiotic resistant.

Answer: b