In One of Thorndike's Puzzle Boxes, a Door Would Fall

Multiple Choice

In one of Thorndike's puzzle boxes, a door would fall open when a cat stepped on a treadle, thus allowing the cat to reach food outside the box. Eventually the cat would step on the treadle as soon as it
Was put into the box. Thorndike concluded that ________.

A) the reasoning ability of cats is quite remarkable
B) treadle stepping increased because it had a "satisfying effect"
C) the treadle is a CS for stepping
D) learning meant connecting the treadle with freedom and food