This is a test of commonsense with single/multi-choices. Complete the next sentence:

How to control fleas by using peppermint
Know the benefits of using peppermint as flea repellant and ways to use it on your pet.
Though peppermint does not fully work to kill the fleas but it helps in restricting the attack on pets.
Use it in a correct way and you will have a healthy and flea free pet at home.

Choices:
1). Keep the peppermint oil in the spray bottle to repel fleas. Mix 3 small cups of rubbing alcohol with a quarter cup of peppermint oil and allow the solution to get settled..
2). Peppermint tends to work on small fleas that are fully under control but they are less aggressive. Experiment with peppermint to see if the effectiveness is working or not..
3). Look into applying peppermint oil to minimize flea outbreaks. This item is advertised as having come in an affordable form, similar to those offered at pet stores..
4). Peppermint has a potent smell, making it an excellent, effective insect repellent. It is safe for humans and not suitable for sensitive dog and cat breeds..
The answer is:
1).