Answer:
should be counted only to the extent that they are more expensive at college than elsewhere
Step-by-step explanation:
The true cost of any type of commodity means the hidden cost or the negative cost i.e. external that added at the time when the pricing of the products are to be done. Also it varies with the market price and it is differently charged to decrease the misuse
So for determining the true cost the college student should keep in mind that the room cost and the board could not go below the market price
hence, the option b is correct