AU.S. motorcycle manufacturer has the otion of either making the gas tank in their newly desged motorcycle, or subcontracting it to a manufacturer from Singapore. The manufacturer expectsto produce 1,000 units per year. Costs for the two options are: Source Variable Cost Eixed Cost Make in-house $21.50 $15,000 Buy from Singapore $29.00 $0 The annual cost to make the gas tank in-house is less than or equal to $30,000 b. more than $30,000 but less than or equal to $40,000 c. more than $40,000 but less than or equal to $50,000 d. more than $50,000 but less than or equal to $60,000 The annual cost to outsource the manufacturing to Singapore is Valess than or equal to $30,000 b. more than $30,000 but less than or equal to $40,000 c. more than $40,000 but less than or equal to $50,000 d. more than $50,000 but less than or equal to $60,000 units. The volume they are indifferent regarding the decision to make or buy is a. less than or equal to 2,000 b. more than 2,000 but less than or equal to 4,000 c. more than 4,000 but less than or equal to 6,000 d. more than 6,000 but less than or equal to 8,000 e. more than 8,000