Ivan Has Begun Operating a Food Truck Business on Campus

Ivan has begun operating a food truck business on campus. His customers have offered suggestions for menu items and stop locations-some of them interesting but impossible at this early stage of business. What is the best way for Ivan to increase his customer base and improve his business?

A) Demonstrate that he listens to his customers and understands what they want.
B) Price his items as high as he can to generate income, which will advance the business.
C) Diligently add items to the menu as soon as he receives the suggestions.
D) Consider the suggestions a "trade secret" between himself and the customer.