he other sonnet-only feature you should keep in mind is the volta, which means "turn" in Italian (think "revolve").
The tele screen couldn't see him in that position in the book.
The prefixes are a group of letters or one single letter placed and attached before the root word, and at the same time provides meaning to the complete word. For example "impossible" in this case the prefix would be "im".
Hence, the correct answer is letter <u>c. ex</u>