Please choose the correct ending to complete the given sentence: Mixing drinks: A man is talking from behind a bar. He pours ice into a glass, then adds different liquors. he

Ending1: begins counting down on a paper. Ending2: then demonstrates how to make liquors to a glass, and then pours ice into another glass. Ending3: prepares the drink, ready to serve. Ending4: serves the drink, then pours the liquors into a glass.

Answer format: ending1/ending2/ending3/ending4