Even critics of Piaget's theories must admit that his

A) age ranges were exact.
B) sex differences were exact.
C) sequences of development continue to remain the same.
D) theory applies to children in the United States better than those in other countries.

Piaget's sequences of development, such as the progression from sensorimotor to preoperational, concrete operational, and finally to formal operational stages, are widely recognized for their accuracy in describing how children's cognitive abilities develop over time, even though there are debates about the exact age ranges and applicability across different cultures and genders.