What happens next in this paragraph?

They continue following the steps one after the other in a structured manner where everybody is shaking their hands and legs rhythmically. their dance moves
Choose from: (1). are very colorful and very choreographed, which leaves their movements more than a little out of control.. (2). change as the music changes and they slow down or move faster according to the beat of the song.. (3). in a curling motion using only one leg and a hand.. (4). to a rolling belly dancing movement and they perform very smoothly..
(2).