A Colleague Is Assessing an 80-Year-Old Patient Who Has Ear

A colleague is assessing an 80-year-old patient who has ear pain and asks him to hold his nose and swallow.Which of the following about this technique is true?

A) This should not be done in an 80-year-old patient.
B) This technique is helpful in assessing for otitis media.
C) This is especially useful in assessing a patient with an upper respiratory infection.
D) This will cause the eardrum to bulge slightly and make landmarks more visible.