A technological advance in the production of the first good increases the opportunity cost of the first good in terms of the second good

A bank's most important service is

a. making money b. providing checking account services c. organizing money flowing into accounts d. providing investment advice e. increasing the amount of cash the public holds

When the firm produces zero output, its fixed cost is

a. zero b. the same as its total cost c. the same as its variable cost d. the same as its marginal cost e. infinite