The ACT is a pretty straightforward test. It's not trying to play mind games with you (a common sentiment students have about the SAT). The ACT requires you to be very detail-oriented so you don't make silly mistakes, but the answer is always in plain sight.
Hmm, it would have to be either satin or silk. I am not sure which exact one. I've looked it up but can't find much. So, it's either C or D since they are both shiny