Why Is Air Pollution an Increasing Problem in Developing Countries

Why is air pollution an increasing problem in developing countries?

A) In the desire to industrialize rapidly, less expensive but outdated, more polluting technologies are being adopted.
B) The global distillation effect brings more pollutants into developing countries than they produce locally.
C) Most people in developing countries now own two cars exacerbating urban heat islands and dust domes.
D) Developing countries are located in areas that tend to suffer from thermal inversions.