Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to deal with fleas and ticks with newborn kittens [title] Use a flea comb. [step] This is the safest and most efficient way to remove fleas from your kitten. You can buy a flea comb at your local pet store.

Ending1: Avoid using a brush on a flea comb as it will scratch you, and you will not be able to remove any fleas within six weeks. [substeps] For a smaller kitten, this is the size of a paperclip and is recommended. Ending2: Always comb out your kitten in a warm room so she does not get a chill or develop a cold, which could be fatal to a kitten. [substeps] Put warm water in a bowl with a few drops of liquid detergent. Ending3: It is a relatively cheap thing to use and it's quick. However, the comb will not remove fleas without the full benefit of quick treatment. Ending4: Instead of an actual flea comb, you can use a self-starter brush that provides you with a mild flea spray. [substeps] Add the flea comb to the right fill size.

Answer format: ending1/ending2/ending3/ending4