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.
C. Aslan must die on the stone Table
Then= telling what you did next
"Then I went home"
Than= comparing things
"That's bigger than the other one"
There- direction
"My house is over there"
Their- they own it
"That's their house"
One antonym for underestimate is overestimate. <span />