An upward sloping isoquant A) can be derived from a production functi

An upward sloping isoquant

A) can be derived from a production function with one input
B) can be derived from a production function that uses more than one input where reductions in the use of any input always reduces output
C) cannot be derived from a production function when a firm is assumed to maximize profits
D) can be derived whenever one input to production is available at zero cost to the firm
E) none of the above

ANSWER

C