The smaller firms in any industry sell either on a price or quality-of--workmanship basis.

Options

A. The smaller firms in any industry sells either on a price or quality-of-workmanship basis.
B. The smaller firms in any industry either sell on a price or quality-of-workmanship basis.
C. The smaller firms in any industry sell on either a price or a quality-of-workmanship basis.
D. The smaller firms in any industry sell on either a price or on a quality-of-workmanship basis.

Answer

C

Explanation

The either .. Or structure should always be as close as possible to the things that they are attached to.