Theresa, who is 4 years old, thinks that her sister is a princess when she wears a tiara in her hair, and a servant when she wears old clothes. Theresa MOST likely is in the _________ stage of development, and has not developed the Piagetian concept of ________ Group of answer choices preoperational; identity constancy preoperational; identity inconsistency formal operations; identity constancy preoperational; centering