A Child Says There Is the Same Number of Pennies

Multiple Choice

A child says there is the same number of pennies in two rows spread out equally. An experimenter spreads the top row of pennies out, increasing the distance between each penny. The child then says there are more pennies in the top row. According to Piaget, this child is exhibiting:

A) conservation of number.
B) failure to conserve number.
C) reversibility.
D) compensation.