Please choose the correct ending to complete the given sentence: Painting: There's an artist painting a square canvas board with several acrylic colors using a flat brush in a studio. she

Ending1: is painting a christmas tree with a piece of acrylic text. Ending2: moves the brush across the screen several times. Ending3: shows how to cut the paint with the flat brush when time stops. Ending4: begins by painting blue strokes with the flat brush on the canvas surface.

Answer format: ending1/ending2/ending3/ending4