Larger Firms Will Often Have Lower Minimum Per-Unit Costs Than

Larger firms will often have lower minimum per-unit costs than smaller firms because

A) employee shirking is less of a problem.
B) large-scale output allows greater specialization for both labor and machines in the production process.
C) mass production techniques, with high setup and development costs, are appropriate only when a small output is planned.
D) all of the above are correct.