Three commonly used productivity variables are:

A$)$ quality, external elements, and precise units of measure.

B$)$ quality, efficiency, and low cost.

C$)$ labor, capital, and management.

D$)$ education, diet, and social overhead.

E$)$ technology, raw materials, and labor.

Which of the following is LEAST likely to be a low$-$cost leadership competitive advantage?

A$)$ effective capacity use

B$)$ mass production

C$)$ broad product line

D$)$ inventory management

E$)$ low overhead