Answer:
B. MENU COST
Step-by-step explanation:
Menu cost refers is the cost incured due to rapid changes in prices. When changing prices of products or services, firms and organizations incur additional cost, this cost is what we refer to as menu cost. With continuous changes, the cost adds up in term of money and time. This is why firms aren't encouraged to changing prices indiscriminately. However in situations like the one presented in the question, with constant changes in the price of inputs used, business owner must also change prices of outputs produced.