The figure shows a section of the ear with letters. P is the thin membrane at the inner end of the canal. Q is the chain of three small bones. R is the tube that joins the middle ear with the pharynx. S is the coiled part of the inner ear. T is the set of three loops in different planes. Which option names them correctly?

Fig. 1: A section of the ear with letters. P is the thin membrane at the inner end of the canal. Q is the chain of three small bones in the middle ear. R is the tube that joins the middle ear with the pharynx. S is the coiled part of the inner ear. T is the set of three loops lying in different planes.