Nanotech is ready to begin production of its exciting new technology. the company is evaluating three methods of production: (a) a small production facility with older equipment, (b) a larger production facility that is more automated, and (c) subcontracting to an electronics manufacturer in singapore. process a has a fixed cost of $200,000 and a variable cost of $40 per unit. process b has a fixed cost of $600,000 and a variable cost of $20 per unit. process c has no fixed cost since the item is purchased. it's variable cost is the purchase price of $60 per unit. for what levels of demand would each process be desirable?