Please choose the correct ending to complete the given sentence: Snow tubing: There are some people snow tubing on a slope covered with snow. Two young children come down the slope in red and black tubes. they

Ending1: slide down the wall dropping their tubes down and sliding down a hill. Ending2: look up into the sky, waving to the camera. Ending3: walk with their poles forward in the snow. Ending4: come down steadily and smoothly till they reach the bottom of the slope.

Answer format: ending1/ending2/ending3/ending4