BrainMass Quizzes Infant Development 2 Continue to test your infant development knowledge with this quiz! 1 Which is NOT a category infant development can be divided into: Social Development Language Development Large Motor Development Small Motor Development None of the Above 2 Typically at 8 months the primary source of a child's nutrition is breast milk or formula. True False 3 You should talk to your doctor if your child is not crawling by 12 months. True False 4 Smacking their lips can be a sign of: Hunger Soothing to sleep Being ready for solids Teething All of the Above 5 Children under a year most likely won't recognize their name or respond to the word "no." True False Submit Quiz