Homosexuality results from reversed gender roles

Which of the following life events has the strongest correlation to the lowest level of marital satisfaction for a couple?

a. a mortgage being denied b. a relative moving in c. a child starting to date d. a spouse losing a job

The ____________ include the testicles and ovaries, that is, organs that are needed for reproduction

A) primary sex characteristics B) secondary sex characteristics C) tertiary sex characteristics D) all of the above