Four-Year-Old Becky Has Just Hit Her Sister Again

Four-year-old Becky has just hit her sister again.What should Becky's mom do? Most developmental psychologists would suggest:

A) give Becky a spanking;she is too young to understand reasoning.
B) explain to Becky that "hitting hurts";she is old enough to understand the consequences of her behavior.
C) give Becky a "time-out";she is too young to understand reasoning.
D) give Becky a spanking;she is old enough to understand the consequences of her behavior and should be punished accordingly.