207.About three-fourths of world cobalt, a metal required for the manufacture of batteries for electric motor vehicles, is produced by

The correct answer is (c). The Democratic Republic of the Congo produces about three-fourths of the world’s cobalt. The other options are incorrect. Argentina produces about 1% of the world’s cobalt, Botswana produces about 2% of the world’s cobalt, and Kazakhstan produces about 10% of the world’s cobalt.

Cobalt is a metal that is used in a variety of products, including batteries for electric vehicles. The Democratic Republic of the Congo is the world’s largest producer of cobalt, and the country’s mining industry has been criticized for its use of child labor.