When the Nurse Is Deflating the Cuff of a Tracheostomy

When the nurse is deflating the cuff of a tracheostomy tube to evaluate the patient's ability to swallow, it is important to

A) clean the inner cannula of the tracheostomy tube before deflation.
B) deflate the cuff during the inhalation phase of the respiratory cycle.
C) suction the patient's mouth and trachea before deflation of the cuff.
D) insert exactly the same volume of air into the cuff during reinflation.