Chevrolet has begun producing a car known as the Wildfire. Chevrolet signed contracts with its suppliers for fixed priced steel to build the car. The first year's sales have been much higher than expected. When Chevrolet returns to its steel suppliers for more steel, the steel suppliers will charge Chevrolet Part 2 A. a lower rate since production costs have dropped. B. the same rate since they have fixed price contract. C. a higher rate since demand has increased for their steel. D. a higher rate since supply has decreased for their steel