Susan and her classmates just finished the sex education portion of their health course in junior high school. The information that Susan learned helped her to decide that she doesn't want to engage in casual sexual relations and feels that they are wrong. According to research, her attitude on sexual relationships will lead to which of the following?

A、
Her attitude will influence her behaviours and she will refrain from casual sex.
B、
Her attitude is unlikely to influence later behaviours concerning casual sex.
C、
Her attitude will strengthen over time and cause her to avoid all sexual relationships until she is married.
D、
She will engage in casual sexual relations and behaviours opposite to her attitude because of cognitive dissonance.