【单选题】When they marry, husbands and wives have well-developed health histories and well-established inborn and developmental habits toward good and iii health. Substantial research suggests that, given the ...
A.
husband's or wife's influence is of vital importance to each other's health
B.
husband's or wife's influence has nothing to do with health
C.
healthy couple will remain healthy after their marriage
D.
a variety of factors coming from the society influence couple's health