I believe the answer is 3
Answer:
→He might get rid of his cough if he doesn't smoke so much.
Montag gets on the subway and starts reading the Bible, because he wants to memorize some lines from it. However, he is being constantly distracted and interrupted by an advertisement for Denham's Dentrifice toothpaste, as its jingle is played over and over again on the subway. He gets really mad because of it and starts screaming and yelling, before he leaves at the next stop.
I think it is line 4 (since it repeats granite twice) Hope this helps!
