According to Piaget,children come to understand that the volume of a substance remains constant despite changes in its shape during the ________ stage.

A) sensorimotor
B) preoperational
C) concrete operational
D) formal operational

According to Piaget's theory, children in the concrete operational stage, which typically occurs between the ages of 7 and 12, develop the ability to understand conservation tasks, including the fact that the volume of a substance remains constant despite changes in its shape. During the preoperational stage, children may struggle with this concept and may be easily fooled by changes in appearance. During the formal operational stage, individuals develop the ability to think abstractly and engage in hypothetical reasoning, but conservation tasks are not a focus of this stage.