Answer:
a) The cost of aluminum used for its automobiles (variable costs - because there is a specific unit and quality of aluminium used per car)
b) The property taxes on its Bowling Green, Kentucky assembly plant (Fixed costs - the business is expected to pay irrespective of sales)
c) The cost of labor for its assembly line workers. (Variable costs - because it can be pre-planned at a certain labor costs per labour hour)
d) The yearly payments for naming rights for the General Motors Centre sports arena in Oshawa, Ontario, Canada. (Fixed costs - the business is expected to pay irrespective of sales)
(E) The salary paid to Mary Barra, the Chief Executive Officer of General Motors(Fixed costs - the business is expected to pay irrespective of sales)
f) The cost of tires it purchases from Goodyear for its trucks and SUVs (variable costs - it can be easily varied by unit of car)