figure above. MC1 represents marginal costs for firm 1, while MC2 represents marginal costs for firms 2. If a common standard for workplace exposure were set at r1 (Hint: Module 13 Slide 74) A. Firm 2 experiences efficient control and Firm 1 experiences a risk that is too low. B. Firm 1 experiences efficient control and Firm 2 experiences a risk that is too low. C. Firm 1 experiences efficient control and Firm 2 experiences a risk that is too high. D. Firm 1 experiences a risk that is too high and Firm 2 experiences efficient control of risk