Multi-choice problem: Continue writing the next sentence in this paragraph:

Two men are on a rooftop cleaning the red roof with soap. People are walking on the rooftop in the right part of the building. people

Options are: (1). are splashed with detergent throwing it on to the rails of the roof. (2). are standing on the roof on sides of the man. (3). are sitting on top of roofs getting cleaned by two guys. (4). are in a rooftop walking and cleaning.
(4).