If a Study Shows That There Is a Positive Correlation

If a study shows that there is a positive correlation between frequency of masturbation and frequency of intercourse with partners, then this means that

A) people who masturbate more also tend to have sex with partners more frequently.
B) people who masturbate more tend to have sex less frequently with partners.
C) masturbating more is a sign that people do not have frequent sex with partners.
D) masturbating leads people to be more sexual with their partners.