Dalila Is at Her Wit's End

Multiple Choice

Dalila is at her wit's end.Her 18-month-old son has become a holy terror.Tuesday,he climbed up on the kitchen counter,opened the canister of sugar,and helped himself to a fistful.Thursday,he put his neighbor's Barbie doll in the fish tank for a swim.Piaget would say:

A) The child is showing healthy signs of little-scientist behaviors.
B) The child's behavior has been learned;Dalila is reinforcing his antics.
C) Dalila has let her son get out of control and must reassert her authority.
D) The child probably has attention-deficit/hyperactivity disorder.