Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to make a natural dog flea massage oil [title] Check the ingredients list below and go shopping. [step] Health food stores are most likely your best source for the ingredients. [title] Place the sunflower oil into a glass or ceramic bowl (metallic bowls may react with some of the ingredients).

Ending1: [title] Add all the essential oils and blend well. [step] It's that easy-now you have the massage oil. Ending2: [step] Hold it under running water for at least 30 seconds. [title] Add the oats, sunflower seeds, tapioca and cinnamon sugar. Ending3: [step] Alternatively, you can use a sturdy, glass jar. [title] Stir the oil until it thickens. Ending4: [step] Mix the ingredients around with the spoon; the mixture will remain richer than the other ingredients, and thus is less likely to run. [title] Add the oregano, peppermint leaves and crushed sage seeds to the oil.

Answer format: ending1/ending2/ending3/ending4