The correct answer is (c).
The average production of scooters by the company is 1000 scooters per year. In 2017, the company produced 1100 scooters, which is 100 more than the average. In 2015, the company produced 900 scooters, which is 100 less than the average. In 2016, the company produced 1200 scooters, which is 200 more than the average. In 2018, the company produced 800 scooters, which is 200 less than the average. Therefore, the production of Type-Q scooters in 2017 is closest to the average production of scooters by the company.
Here is a table showing the production of Type-Q scooters in each year:
Year | Production of Type-Q scooters
——- | ——–
2015 | 900
2016 | 1200
2017 | 1100
2018 | 800