A student investigates electromagnetic induction using a solenoid connected to a sensitive center-zero galvanometer.
The diagram shows three consecutive stages of the experiment:

Which of the following correctly describes the deflection shown on the galvanometer pointer for each of the three stages?
Stage P: deflects to the left; Stage Q: deflects to the left; Stage R: deflects to the right
Stage P: deflects to the left; Stage Q: remains at zero; Stage R: deflects to the left
Stage P: deflects to the left; Stage Q: remains at zero; Stage R: deflects to the right
Stage P: deflects to the left; Stage Q: remains at zero; Stage R: remains at zero