Answer:
"and this overload of stimulus could be altering the way their brains are getting wired."
"objective; object of preposition" Is your answer.
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.
The mood is B, Contemplative and quiet because the narrator is far from where the owner lives
