As Husband's Participation in Domestic Labour Increases

As husband's participation in domestic labour increases

A) both spouses report higher levels of marital happiness.
B) husbands report higher level of marital happiness and wives report lower levels.
C) wives report higher levels of marital happiness and husbands report lower levels.
D) both spouses report lower levels of marital happiness.
E) both spouses report higher levels of conflict.