The marginal cost of producing the sixth bagel is:

Table: Costs of Producing Bagels

Quantity of bagels (per period)

Total variable costs

Total fixed costs

0

$0.00

$0.10

1

0.20

0.10

2

0.30

0.10

3

0.35

0.10

4

0.45

0.10

5

0.60

0.10

6

0.80

0.10

7

1.05

0.10

8

1.35

0.10

Reference: Ref 8-3

(Table: Costs of Producing Bagels) The marginal cost of producing the sixth bagel is:

A.$0.80.B.$0.15.C.$0.20.D.$0.10.