Medieval monasteries were very powerful and wealty institutions which even had moveable and landed properties. They were centres of education and culture. Education was not cheap at medieval times, so only wealthy people could afford it for themselves and their children. Also there were a lot of rich patrons and charity givers who tried to help and support monasteries with money and goods.
I think the correct answer among the choices listed above is option B. When the demand of a product is low, most likely the price of that product will go down. When the demand is low, most likely there is an excess supply which is referred as surplus. For businesses to have profit or to breakeven, they tend to lower the prices.
