Read the following passage and circle the letter A, B, C, or D to indicate the correct answer to each of the questions from 39-45.
Electric vehiclesElectric vehicles are becoming more and more common in many parts of the world. Unlike traditional vehicles, which run on petrol or diesel, electric vehicles more practical, allowing them to travel longer distances and recharge more quickly. Today, many well-known car manufacturers are investing heavily in the development of electric vehicles and introducing new models to the market each year.One reason for the growing popularity of electric vehicles is their environmental benefits. Since electric vehicles do not produce exhaust emissions while operating, they can help improve air quality, especially in large cities where traffic pollution is a serious problem. In addition, many governments encourage people to purchase electric vehicles by offering financial support or investing in public charging stations. These efforts help increase public interest in clean means of transportation.Despite these advantages, electric vehicles still face several challenges. Their purchase price is often higher than that of conventional vehicles, and charging facilities are not equally available in all areas. Nevertheless, experts believe that continued technological progress will make electric vehicles more affordable, efficient, and convenient in the years ahead.