All of the Following Are Probably Explanations for Why Piaget

Multiple Choice

All of the following are probably explanations for why Piaget may have underestimated the cognitive development of children except

A) how you ask a question can change the answer you receive.
B) children are much more familiar with some objects than with others used in his observations.
C) the children intentionally gave him incorrect answers to his questions.
D) preschool children are more comfortable and confident talking with more familiar people.