A shop wants to increase capacity by adding a new machine. The firm is considering proposals from vendor A and vendorB. The fixed costs for machine A are $90,000 and for machine B, $75,000. Which machine should the shop choose to minimize costs?
A) Machine A with fixed costs of $90,000
B) Machine B with fixed costs of $75,000
C) Machine A with variable costs unknown
D) Machine B with variable costs unknown