Please choose the correct ending to complete the given sentence: Making a cake: The ingredients for a chocolate cake is displayed, then a person puts flour oil, eggs, milk in a bowl. then

Ending1: , the person puts the flour, eggs and chocolate in a pan. Ending2: , the person pool ingredients and put in a box, then the person mix it in a pan. Ending3: , the person mix all the ingredients and adds chocolate and mix it again. Ending4: , the person dips the ingredients in flour, cook it, and layer it with chocolate.

Answer format: ending1/ending2/ending3/ending4