Please choose the correct ending to complete the given sentence: Installing carpet: It seems like they just put in new carpet and now they are making sure it is held down correctly. they

Ending1: use a nail gun of some type to nail the ends of the corner. Ending2: are now replacing the new carpet so it looks like the tile didn't fall off. Ending3: added more carpet and its making sure not to chip around to create big cutouts above it. Ending4: are installing new floor hangings.

Answer format: ending1/ending2/ending3/ending4