pts Officers knock on an apartment door looking for a male suspect. A female opens the door and the officers learn from her that the suspect is not present and that she is his live-in girlfriend. The officers want valid consent to search. They O must wait till the suspect returns and ask him. O may obtain consent from the girl only if she pays at least part of the rent. O may obtain consent from the girl, since she has authority over the premises. O may ask the apartment manager. Z