Which of the following movements can be described as random motion?

Gas molecules colliding in a flask can be described as random motion. When gas molecules are in motion, they collide with each other and the walls of the container in which they are enclosed. The motion of these gas molecules is completely random, and they move in different directions at different speeds. The kinetic energy of the gas molecules determines the speed and motion of the molecules. Therefore, the random motion of gas molecules is a consequence of their kinetic energy. On the other hand, the wheelbarrow being pushed, car travelling on a straight line, and planets going around the sun follow specific trajectories and patterns. They move in a specific direction and are influenced by forces acting upon them. Thus, these movements are not considered random motion.