Suppose 40 percent of all potential workers are highly skilled and contribute $50,000 to the firm each year. The remaining 60 percent of potential workers are less-skilled and contribute only $30,000 to the firm each year. Schooling costs a highly skilled worker y per year, while it costs a less-skilled worker 2y per year. What range of y will support a signaling equilibrium?

A. $0 < y < $50,000
B. $5,000 < y < $20,000
C. $10,000 < y < $20,000
D. $5,000 < y < $10,000
E. $20,000 < y < $50,000

Answer: C