Suppose You Observe a Baby Sitting in Front of a Mirror

Multiple Choice

Suppose you observe a baby sitting in front of a mirror. You now place a dot of rouge on the baby's nose. You see the baby look at the mirror, and then touch her own nose to feel why it is red. Your best guess is that this baby is about how old?

A) about 6 months of age
B) about 12 months of age
C) about 18 months of age
D) 36 months of age