SUFFIX meaning: a letter or a group of letters that is added to the end of a word to change its meaning or to form a different word.
A colon is used to explain a enumeration. A enumeration is a complete, ordering listing of all the items in a collection. I searched it up give the credit to Google.
<span>B. Novels have simple, straightforward themes (and few of them).</span>
He could not be allowed out of the attic at all