Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make bubble tea [title] Pre-soak the pearls for a few hours if you want them tender all the way through, rather than soft on the outside and chewy on the inside (which is how most people prefer them). [title] Measure 7 parts water to 1 part tapioca pearls. [step] Bring the water to a rolling boil.

Ending1: [substeps] 1 liter (0.3 us gal) of water helps with wet pearls while warm water helps with dry ones. [title] Cook the pearls for 10 minutes on medium heat. Ending2: [title] Add the pearls and stir them to make sure they don't stick to the bottom. [title] When the pearls float to the top, cover the pot and keep the water at a rolling boil for 30 minutes. Ending3: Add 5 drops of food coloring, if desired. [title] Carefully pour the mixture into an 8 ounce (240 ml) glass beaker. Ending4: [title] Place the pearls in the boiling water. [step] Cover and keep it at a simmer for about half an hour, turning occasionally.

Answer format: ending1/ending2/ending3/ending4