Final answer:
When the control stick of an aircraft is moved rearward and to the left, the right aileron moves down and the elevator moves up, causing the aircraft to roll to the left and pitch up.
Step-by-step explanation:
When the control stick of an aircraft with properly rigged flight controls is moved rearward and to the left, specific control surfaces on the wings and tail of the aircraft respond to this input. Moving the control stick to the left results in the left aileron moving up and the right aileron moving down. This differential movement causes the aircraft to roll to the left. Meanwhile, pulling the control stick rearward causes the elevator to move upward, which makes the nose of the aircraft pitch up.
Therefore, the correct answer to the student's question is A. the right aileron will move down and the elevator will move up.