The person watching television won't question what the see/hear, and they'll start to believe everything on their TV.
What is there to choose from?
What answer are you looking for here? The sentence is grammatically correct.
Answer:
USE A COMMA TO SEPARATE INDEPENDENT CLAUSES. ...
USE A COMMA AFTER AN INTRODUCTORY CLAUSE OR PHRASE. ...
USE A COMMA BETWEEN ALL ITEMS IN A SERIES. ...
USE COMMAS TO SET OFF NONRESTRICTIVE CLAUSES. ...
USE A COMMA TO SET OFF APPOSITIVES. ...
USE A COMMA TO INDICATE DIRECT ADDRESS.
Explanation: