Sharon is in the fourth week of her pregnancy. At which stage of prenatal development is her offspring?

Piaget's Substage 3: Secondary circular reactions stage occurs for infants in the age range of

a) 1-6 months of age. b) 1-8 months of age. c) 1-4 months of age. d) 4-8 months of age.

For the first five months of life, Jessica seemed to be developing normally. Then, her head gradually began to stop growing; a pediatrician described her condition as microcephaly

She demonstrated impaired language development, poor coordination, and a loss of social interactions. What is the most likely diagnosis? a) Rett's disorder b) autistic disorder c) childhood schizophrenia d) childhood disintegrative disorder