Answer:
They were expensive because people with special skills were needed to produce them.
Explanation:
The text doesn't say anything about the last two options, and not only wealthy people bought them. They weren't rare either.
<span>How does the author maintain the lively, active mood of "in Just"? </span><span>
A. by describing the children's voices</span>
The sentence that uses the passive voice for the main verb is: When we can pick our reading, mythology is most often chosen in my class. When a sentence is written in the passive voice, the subject becomes the receiver of the action. The subject in this sentence is "mythology" which receives the action of "most often chosen".