Montana Industries has computed the following unit costs for the year just ended: Variable manufacturing overhead $85
Fixed manufacturing overhead 20
Variable selling and administrative cost 18
Fixed selling and administrative cost 11

Which of the following choices correctly depict amounts included in the per-unit cost of inventory under variable costing and absorption costing?
a. Variable, $85; absorption, $105.
b. Variable, $85; absorption, $116.
c. Variable, $103; absorption, $116.
d. Variable, $103; absorption, $105.
e. None of the answers is correct.