News commentators might be called on the air.

(A) Editors

(B) Leaders

(C) Artists

The answer is option " (A) Editors".

News commentators might be called "editors" on the air. Because at times they can pick which material to center around, and which material to not center around for a report, so that is why they are also called as editors as to pick and chose the right material for a report is the job of editor.