Multi-choice problem: Continue writing the next sentence in this paragraph:

How to keep your cat from becoming aggressive 
Do not encourage rough play. 
If your cat scratches and bites when they play, do not encourage them. This will make the cat think it's okay to rough play to anyone.

Choose from:
[1]. Let your cat play, but do not pull them off the floor. If your cat resists and makes a lot of biting, then use the litter box in the room.;
[2]. Giving them a treat or a kind word will only increase their aggression. Take caution when playing with your cat.;
[3]. Your cat is more likely to associate casual play with submission and aggressiveness. Toys with a loud sound, such as bells, are a great way to lure a cat outside.;
[4]. Whenever your cat starts biting and scratching you while playing firmly say " no. " and then put your cat down on the floor.;
[4].