Actions that are constructive, altruistic, or helpful to others are known as

When a grandfather smiles at his young granddaughter, she responds by moving toward him. If he looks angry, she is likely to ________, suggesting that ________

a. also move toward him; she does not know the difference between these expressions b. also move toward him; her behavior is unaffected by emotional expressions c. move away; she can recognize and understand the meaning of these expressions d. move away; her behavior is unaffected by emotional expressions

The period of development referred to as infancy refers to which of the following?

a. conception to 12 months b. birth to 12 months c. birth to 24 months d. 12 to 24 months