You Arrange Two Rows of Pennies So They Are Equal

Multiple Choice

You arrange two rows of pennies so they are equal in length. A child views the rows and states that they have the same amount of pennies. You spread out the pennies in the bottom row so that this row is longer than the top one. The child now states that the bottom row has more pennies. This child is in Piaget's ________ stage of development.

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