During a whole-group discussion on the westward expansion of the United States of America, a fifth-grade teacher incorporates questioning strategies into the lesson. Which of the following questions will most likely require students to use higher-order thinking skills?
A. "When did westward expansion begin?"
B. "List the main events of westward expansion."
C. "Why did people move west during this time?"
D. "Name the states that were part of the expansion."
