Please choose the correct ending to complete the given sentence: Cleaning sink: The second step is to put gloves, and the third step is to wet a cloth and put abrasive power to rub the bathroom sink. the four step

Ending1: exercise routine is to apply the slippers. Ending2: is to put abrasive powder on a sponge to clean thoroughly the bathroom sink, then the fifth step is to mix vinegar with water. Ending3: task is shown in reverse. Ending4: task is tried out on the sink.

Answer format: ending1/ending2/ending3/ending4