Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make sourdough bread [title] Select a container for your starter. [step] A " starter " is a slurry of flour and water, and it provides the vehicle in which your yeast will propagate. You need a high concentration of yeast to leaven your bread, so you have to get a colony going before you can start baking.

Ending1: [substeps] Flour comes in 3 to 4 parts: water, yeast, and flour. Your starter is the juice of 100% to 1 part barley , 130% to 150% whey, and 40% yeast. Ending2: [substeps] A " starter " container works best for creating the yeast without the use of plastic cups. Instead, purchase a medium sized plastic pie tray (or similar other suitable container) and place it in a small bowl. Ending3: [substeps] Choose a container based on your need. A large jar that has a cutting hole works best. Ending4: Any glass or plastic container with a lid will work for a sourdough starter. [substeps] Canning jars are excellent, as are empty pickle or jam jars.

Answer format: ending1/ending2/ending3/ending4