Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to cook ribs in the oven [title] Prepare the ribs. [step] Remove ribs from the packaging and pull off the membrane, which is usually attached to the underside of the rib cage. [title] Combine all dry ingredients in a medium bowl.

Ending1: [step] Dump in all the dry ingredients and mix together with a spoon. [substeps] You can use a fork or spatula to sift the dry ingredients into your mixing bowl if you prefer. Ending2: [step] Shake well before you get them out of the packaging and put them in the bowl. [title] Add the salt and cut the surface down to ½-inch/1.5-centimeter (6.35 mm). Ending3: [step] Mix two portions of the dry ingredients together with a wooden spoon until smooth. [title] Add both of the dry ingredients to the wet ingredients and mix everything together using the back of a fork or a whisk. Ending4: [step] Mix well using a whisk. [title] Season the ribs on each side with the dry rub.

Answer format: ending1/ending2/ending3/ending4