Hello, I was just wondering about how the cost of labour and capital in the following question factor into

The following data show the total output for a firm when different amounts of labour are combined with a fixed amount of capital.Assume that the wage per unit of labour is $10 and the cost of the capital is $50.Labour per periodTotal output per period00103090132150TABLE 7-35) Refer to Table 7-3. The average total cost when producing 150 units of output is approximately5)A) 40 cents.B) 67 cents.C) $1.50.D) 80 cents.E) 33 cents.