The answer is simile due to the use of like
The whole To Kill A Mockingbird was told from a point of view when Scout was grown up so she realized then, but as a child she was innocent so she did not realize that they was a mob in the first place. So for a short answer No she was aware.
The correct answer would be "D. She washed the shells and dried themm in the sun.". First, we should know what a <em>compound predicate</em> is. A compound predicate is when a subject has 2 or more verbs. In your sentence, you have two verbs, which are <em>washed</em> and <em>dried.</em>
B. A possessive pronoun shows ownership, I.e. Mine, yours, hers, theirs, his