Price elasticity of demand and Perfect Competition

Table 1. Quantity of tomatoes and marginal cost

Quantity of organic tomatoes	Marginal cost
0	$0
10	$2
20	$4
30	$6
40	$8
50	$12

Assume the fixed cost is $140.

Referring to Table 1 above, calculate producer's average total cost in Table 2 above and answer the following questions.

When quantity of organic tomato is 10, the average cost is $

select

a)17

b)16

c)14

d)15