Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make sweet potato chips [title] Heat canola oil. [step] Pour 3 to 4 cups of canola oil into a wok or deep-fryer. You may need more or less oil, depending on the size of your wok or deep-fryer.

Ending1: Just ensure that you have about 3 inches of oil in the bottom of the fryer. Heat the oil between 360 and 375 degrees f (182 to 190 c). Ending2: Place the wok on the stove over medium-high heat. [substeps] Canola oil is a cooking oil and can be used to prepare sweet potatoes, as it is simple to fry for cooking and is high in water. Ending3: [substeps] Make sure that the oil is kept hot, as canola oil is somewhat flammable. If it is still hot, then keep the oil at a temperature between 180ºf (6ºc) and 350 ° f (176.5 ° c) for 3 to 4 minutes. Ending4: Use enough to cover the bottom of the wok or deep-fryer on both sides. [substeps] Stir the oil until it's at the right temperature.

Answer format: ending1/ending2/ending3/ending4