Answer:
a. 3 million passenger cars
Explanation:
A is the correct answer.
The working is as follows :
Asia : 11 million passenger cars
Eastern Europe/Russia : 8 million passenger cars
To find out the difference between the number of passenger cars produced in Asia and the number produced in Eastern Europe/Russia, we have to subtract Asia's amount from Eastern Europe/Russia's amount :
11 million passenger cars - 8 million passenger cars = 3 million passenger cars