Which One of the Following Teacher Questions or Statements Asks

Which one of the following teacher questions or statements asks students to engage in a complex cognitive process?

A) "Can you remember the three categories of rocks that we studied last week?"
B) "Here are the same rocks that we studied yesterday. Try to sort them into three piles-sedimentary,igneous,and metamorphic-the same way we did yesterday?"
C) "Can you use what you've learned about snakes and what you know about climate in North America to predict where this snake might live?"
D) "Now that I've shown you how to do forward and backward rolls on the floor mat,work with two of your classmates to practice them."