Please choose the correct ending to complete the given sentence: Cleaning sink: They then start to pour some vinegar down the sink. They watch it all go down the drain and then pour in some more vinegar. then they

Ending1: add some cream to the sink to clean it up. Ending2: add some salt and pasta to the sink. Ending3: start to add in more baking soda. Ending4: grab some baby powder and clean the sink.

Answer format: ending1/ending2/ending3/ending4