(Subject is Photography)Please help I will ask more questions later also (10 points) Aaron needs to trim some images he’s just printed. So he gets out his paper cutter and lines up a stack of photos to trim. He places 15 sheets of photo paper under the blade and presses down. All of a sudden, the blade gets stuck in the paper! What did Aaron MOST LIKELY forget to do before he started trimming his photos?

A.
He forgot to check the operating manual to see how many sheets of paper the paper cutter could cut at once.
B.
He forgot to keep his hands and fingers behind the guard rail.
C.
He forgot to carefully position his paper cutter on a flat surface.
D.
He forgot to use matte paper in his photo printer.