Answer:
Nosotros barremos el suelo "we sweep the floor."
Explanation:
Prendemos would mean "we light the ground," sacuden would mean "we shake the ground," and barren is the incorect verb form. Barren is used for ustedes, and in this situation we are reffering to ourselves and not somebody else.
If you say that you are being kind probably you are saying that to a friend.
Hay que sacudir los muebles de la sala this means we have to shake off the furniture of the room
Hope this helps