Please choose the correct ending to complete the given sentence: Mixing drinks: A bartender explains and shows how to prepare exotic alcoholic drinks in glasses using alcohol and juice. then

Ending1: , the man sharpens the knife with a sharpener and then dis covers the plastic. Ending2: , the bartender adds ice to the glass to fortify the drink. Ending3: , the bartender takes a cup and prepares a cocktail in a shaker, then he pours it in the cup. Ending4: , the bartender adds liquor to a glass with ice and straight shot glass.

Answer format: ending1/ending2/ending3/ending4