This kind of question really bothers me "... How would you accomplish this task? Explain your answer."
So I've lost count on how many ways that have been mentioned so far. Even though they are all different, they correctly answer the question: "... How would YOU ..."
Now either the question is designed to make the students think about how it might be accomplished (which would be great), or the instructor is really asking "... How would I accomplish this task? Explain you answer." (which kinda stinks)
Now for MY answer. If they want lights now, the next thing they'll want is 120V receptacles. Put in a mini-power zone and wire the place up right, with a light outside at the door, and outdoor receptacles, too.