Thorndike Found That a Cat Learned to Escape from a Puzzle

Multiple Choice

Thorndike found that a cat learned to escape from a puzzle box by the consequences of its behavior.How could he arrive at such a conclusion?

A) The CR was increasing in magnitude over time.
B) The cat learned by watching Thorndike open the puzzle box.
C) The CS (freedom) provided information about the occurrence of the UCS (piece of fish) .
D) The time it took cats to escape decreased over time.