Erikson believed that intimacy cannot be achieved until after one's identity is established. This is suggested by the fact that

A. a key factor in enduring marriages is the relative maturity of the two partners at the time they are married

B. the beliefs people bring into a marriage influence how satisfied they will be as the marriage develops

C. the pattern of marital satisfaction is determined by the vulnerability-stress-adaptation model of marriage

D. older couples describe their partners in more positive terms than do middle-aged married partners