B; la escalera translates to the escalator, which are the moving stairs in malls and stores that people use to go from one floor to another. You can't use the first floor, garage, or basement to go to another floor.
Usa la radio escucha música?
I actually am.
Whole Family is either Puerto Rican or Cuban
I'm Hispanic but I speak both English and Spanish<span />
Va a la casa , if you put the others in a sentence it makes no sense