What is the most likely purpose of an article that explains how DDT is used to stop the spread of malaria?

To convince reads that DDT can be helpful in some situations.

Explanation:

The options you were given are the following:

Dichloro-diphenyl-trichloroethane, usually referred to as DDT, was developed as the first modern synthetic insecticide in the 1940s. It was initially used with great effect to combat malaria, typhus, and other insect-borne human diseases among military and civilian populations.  However, its use has been reduced due to its negative effects on human health and the environment. There have been attempts at switching to other, less harmful, insecticides, but DDT has had the most success at battling the spread of malaria, which kills more than 800,000 people every year. That's why the only remaining legal use of DDT is to control malaria-carrying mosquitoes. This information would be included in an article to show the readers that DDT can be helpful in some situations.

the answer is   c the cold war