If Bread Is Produced by Using a Constant Returns to Scale

Multiple Choice

If bread is produced by using a constant returns to scale production function, then if the:

A) number of workers is doubled, twice as much bread will be produced.
B) amount of equipment is doubled, twice as much bread will be produced.
C) amounts of equipment and workers are both doubled, twice as much bread will be produced.
D) amounts of equipment and workers are both doubled, four times as much bread will be produced.