The line chart given below shows the ratio of poduction to sales of two bike-manufacturing firms over the period of 6 years.

Assume if in any year sales is more than production then both the companies have sufficient stock to meet such instances.
Company 1 sold 20000 bikes each year from 2011 to 2016 and company 2 sold 10000 bikes each year from 2011 to 2016. What is the difference (in units) in average yearly production of companies 1 and 2?

Options

A. `6733.33`
B. `7500`
C. `8666.66`
D. `9333.33`

Answer

D