The world faces a calamitous food crisis if we do not stop overfishing. According to the United Nations, about one billion people, mostly in developing countries, rely on fish as their primary source of animal protein. What will they do when the fish run out? That crisis could occur soon. While there will probably never be a time when we do not have fish, there could come a time when we no longer have enough fish. The cause of this fish shortage is overfishing. Overfishing occurs "when more fish are caught than the population can replace through natural reproduction," according to the World Wildlife Foundation. Once this occurs, the species is no longer "sustainable." Which sentence contains subjective language?

The cause of this fish shortage is overfishing.

The world faces a calamitous food crisis if we do not stop overfishing.

According to the United Nations, about one billion people, mostly in developing countries, rely on fish as their primary source of animal protein.

Overfishing occurs "when more fish are caught than the population can replace through natural reproduction," according to the World Wildlife Foundation.