The Diseases That Are Caused by Water Pollution in the Major

The diseases that are caused by water pollution in the major cities of developing countries are mainly due to the

A) Lack of waste treatment systems to accommodate the population
B) High amount of runoff that includes pesticides, fertilizers, and animal waste
C) High number of industries that dump their wastes into surface water
D) Practice of swimming in water contaminated by toxic chemicals
E) High use of pesticides and fertilizers by urban residents