Please choose the correct ending to complete the given sentence: Making a sandwich: They slice an egg and put it on the sandwich. The cut up an avocado and put it on the sandwich. they

Ending1: put the sliced up sandwich on a plate. Ending2: are still putting things onto the plate. Ending3: cut up mayo on the sandwich. Ending4: put mayonnaise on the sandwich and put another piece of bread on top.

Answer format: ending1/ending2/ending3/ending4