Please choose the correct ending to complete the given sentence: Laying tile: The video shows a tutorial on how to install ceramic tiles using concrete. A person wearing an orange vest and black pants is working on tiling a room in a house. he

Ending1: begins to spread tile onto a carpet while standing below the tiles and has the tiles sanded and installed by a professional. Ending2: sprays the floor with spray the tiles. Ending3: uses a metal tool tool and stone the surface of hardwood pattern tiles to dust them. Ending4: is kneeling down next to a pile of white square ceramic tiles and a bucket filled with grout and cement.

Answer format: ending1/ending2/ending3/ending4