Answer:
a. The cost of the marble will be expensive because of the bargaining power of the supplier.
Explanation:
As the marble her provided is only used for the common public buildings and churches. This is basically the best use of the marble, as the quality is high and used in best architecture in the economy.
Therefore, it clearly states the value of marbles, which is generally expected to be high, and as it is used in public buildings the supplier will not allow the purchaser to bargain. This is because the bargain power of the purchaser will be low, and as there is high demand.
Accordingly price will be high.