The Great Scientist, Timothy O

Multiple Choice

The great scientist, Timothy O., is sitting in his high chair observing the different sounds mashed peas, applesauce, and Cheerios make as they hit the floor and walls. The groans emitted by his caregiver provide interesting sidelight, as well. Timothy O. is likely to be in which substage of sensorimotor development?

A) substage 3 (4 to 8 months)
B) substage 4 (8 to 12 months)
C) substage 5 (12 to 18 months)
D) substage 6 (18 to 24 months)