The production function output is constant along

A. an isoquant

B. an isoprofit line

C. a production frontier

D. Both A and C choices

E. Both B and C choices

Production technologies that have the same shaped isoquant maps

A. can give increasing returns to scale

B. can give decreasing returns to scale

C. can give constant returns to scale

D. All the given choices are correct

E. Only A and C are correct

F. Only B and C are correct

A quasiconcave production function

A. can only give increasing returns to scale.
B. can only give decreasing returns to scale.
C. can only give constant returns to scale
D. A, B and C (all three choices are correct)
E. Only A and C are correct choices
F. Only B and C are correct choices