Four-Year-Old Becky Is Playing with Blocks, Stacking Them One on Top

Four-year-old Becky is playing with blocks, stacking them one on top of another until her towers eventually tumble, and then stacking the blocks again. Which one of the following best reflects Piaget's view of how Becky is probably learning in this situation?

A) Because she is probably still in the sensorimotor stage, she will remember what she learns about the blocks only while the blocks are still in front of her.
B) She is absorbing information about how the environment behaves e.g., "objects fall") without consciously thinking about it.
C) She is actively thinking about and interpreting the results of her actions.
D) Because she builds one tower after another, she is obviously reinforced by watching her towers tumble down.