Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to marinate ribs [title] Defrost your ribs completely. [step] Place them in the refrigerator two to four days before your plan to cook them. The amount of defrosting time is commensurate with the size of the rack.

Ending1: For example, a 12-inch (23-cm) frefish rack can be marinated in a total of seven hours. [substeps] Store the meat and cheese in an airtight container. Ending2: Cold racks can take many hours to cook. Do not defrost the ribs for long, as that could ruin the main flavor of them. Ending3: [title] Turn the ribs on their front side. [step] Slice the thin membrane at the back and pull it off to make it more tender and allow the marinade to penetrate a little further. Ending4: Refer to the package (which can often tell). Most refrigerated ribs will be defrosted in two hours.

Answer format: ending1/ending2/ending3/ending4