Final answer:
About one-third of the offenders in sex offender treatment programs are women.
Step-by-step explanation:
The correct statement regarding sex offenders in treatment programs is c. About one-third of the offenders are women.
The information provided does not support statements a, b, or d. There is no data given about the sexual orientation or age distribution of sex offenders in treatment programs. Additionally, the information about sexual behavior in the Human Male book is not directly relevant to the question.