Use the Following to Answer Questions

Multiple Choice

Use the following to answer questions:
-(Table: Demand Schedule for Gadgets) Look at the table Demand Schedule for Gadgets. The market for gadgets consists of two producers, Margaret and Ray. Each firm can produce gadgets at a marginal cost of $2 and no fixed cost. If industry output is 300 gadgets produced by Margaret and 200 gadgets produced by Ray and if Ray decides to increase output by 100, industry price will be:

A) $4.
B) $3.
C) $2.
D) $1.