Studies on Frequency of Sexual Intercourse Among Married Couples Finds

Studies on frequency of sexual intercourse among married couples finds that

A) Frequency goes down with length of marriage.
B) Those who are most sexually active the first year of marriage are least active later one.
C) There is no correlation between sexual frequency and overall sexual satisfaction.
D) There is no correlation between sexual frequency and overall relationship satisfaction.
E) All of the above.