Please choose the correct ending to complete the given sentence: Computers and Electronics: [header] How to make cherry jam [title] Wash your cherries in running water. [step] Remove all dirt from the surface. You don't want dirt to mix in with the cherries after they are pitted.

Ending1: Leaving the surface clean will also help prevent the cherries from turning too red. [title] Cut off the top side of the cherry, leaving the bottom. Ending2: Do not mash the cherries to make a paste. You want each cherries to have uniform peels. Ending3: [title] Label your cherries with a hazardous product if you've identified an area with raw cherries, or if none of the stems have had an ever been properly peeled. [title] Place the cherries on a clean, dry surface. Ending4: [substeps] Most people use sour cherries for cherry jam, because they are easy to sweeten, while remaining slightly tart. If you use sweet cherries, reduce the amount of sugar you use.

Answer format: ending1/ending2/ending3/ending4