Which of the Following Statements Is Correct If the Appropriately

Multiple Choice

Which of the following statements is correct if the appropriately sized firm is one with a large output?

A) Constant returns to scale must begin at low levels of output.
B) Economies of scale must prevail until high levels of output are reached.
C) Diseconomies of scale must begin at low levels of output.
D) Constant returns to scale must be absent.