Three Month Old Ruchi Holds Her Pointer Finger Out in Front

Multiple Choice

Three month old Ruchi holds her pointer finger out in front of her face, repeating this behavior over and over again. Her mother believes that Ruchi first noticed her finger by chance, but now baby Ruchi seems fascinated with her finger. Which of Piaget's sensorimotor stages is Ruchi demonstrating?

A) Primary Circular Reactions
B) Secondary Circular Reactions
C) Coordination of Secondary Schemes
D) Tertiary Circular Reactions