In a Careful Study of Tool Use in Apes and Crows

Multiple Choice

In a careful study of tool use in apes and crows, the researchers found

A) that only the ape behavior reflected causal knowledge of the task.
B) that only the crow behavior reflected causal knowledge of the task.
C) that both ape and crow behavior reflected causal knowledge of the task.
D) that neither ape nor crow behavior reflected causal knowledge of the task.