Maria, Mother of 10-Year-Old Twins, Is an Active Member of Child

Maria, mother of 10-year-old twins, is an active member of child sexual abuse prevention programs. She wants to reiterate the learnings of the programs at her home. Which of the following should she do to prevent her children from sexual abuse?

A) She should tell her children that they would be punished if they do not stop someone from touching them.
B) She should teach her children the difference between "good" and "bad" touching.
C) She should restrict her children from playing with children who are older than them.
D) She should reprimand her children for saying "no" if it results in an uncomfortable situation for them.