Who is likely at the highest risk for sexually transmitted infections?
a. Amica, a 19-year-old African American heterosexual who has multiple sexual partners but takes oral contraceptives for protection.
b. Rodricka, a 27-year-old gay African American man who is in a mutually-exclusive relationship and uses condoms.
c. Evia, a 28-year-old European American lesbian who uses a dental dam when having oral sex.