The word "ditched" in Para. 5 could best be replaced by "________".

A．can get more help from their family members if they are in trouble
B．will have more freedom of action and thought if they move away from it
C．are less likely to quarrel with others because of conventionality and stability
D．have to depend on their relatives and friends if they do not move away from it

A．peers have little impact on children's development
B．Ms Harris's work strengthens the developmentalists’views
C．evidence Should be provided to prove peer influence on child development
D．Ms Harris's work had little effect on the developmentalists’"nurture" argument