You can. If I were you, I would try to use your character inner thoughts to try and start it off. You can do that by using italics. Here's an example:
(Based on a different show, Riverdale. I'm using the last sentence from your story to show you how it would work)
(...) I tried getting my arm free from underneath the bed. As I pulled, I was able to get my hand out. I was appalled, but grateful.
<em>How did that happen? </em>Betty thought to herself as she shook her head.
I hope you undertood that and that it helps.
Answer:
It isn't raining outside.
To my mind, the answer ( B ) is the inappropriate sentence. In a formal writing informal tone must be avoided as well as colloquial expressions.
An <span>imperative sentence is used to give a command
</span>
Remind, or to let someone know a certain thing.
