Which of Jean Piaget's stages of cognitive development is characterized by abstract thinking and the creation of hypotheticals?

According to Piaget, the stage-five infant is like a

child in the "terrible twos." neurotic who cannot take no for an answer. mime who imitates behavior of all kinds. scientist who experiments to see.

__________ is reflected in written language by punctuation marks

a. Priming b. Deep structure c. Prosody d. Fixation e. An affix