Q: In this task, you are given a multiple-choice question and you have to pick the correct option. Answer with option indexes (i.e., "A", "B", "C", and "D").
Recently, a lot of people, en masse, were told that they should take an opportunity to cast an image of an object through a pinhole onto a screen, in order to best enjoy an activity. This was because (A) scientists are lacking fun (B) eclipses are best to look at directly (C) science tells us eclipses are scary (D) avoiding looking directly at an eclipse is important
A:
D