Robbie Is 20 Months Old, and One Day, for the First

Robbie is 20 months old, and one day, for the first time, he watched his father shave.Two days later his mother claims that Robbie climbed up to the sink and began imitating his father's shaving ritual with a toothbrush.In this case, is the mother's claim plausible?

A) Yes, because children begin to show imitation of novel behaviours during the second year.
B) Yes, because children begin to show imitation of novel behaviours at 6 months of age.
C) No, because most children do not show imitation of novel behaviours until they reach the concrete operational stage of cognitive development.
D) No, because most children do not show imitation of novel behaviours until they reach the preoperational stage of cognitive development.