4. Refer to Figure 13.10. If the government imposed a price ceiling of $12 on this firm, the firm would sell to A) 1,000 subscribers and earn a profit of $4,000. B) more than 2,500 subscribers so that price would equal average total cost. C) 2,500 subscribers but would require a subsidy of $1,250 to stay in business. D) 2,200 subscribers and would require a subsidy of $2,200 to stay in business