A patient diagnosed with probable Alzheimer's disease is having his swallowing ability tested. ...

A patient diagnosed with probable Alzheimer's
 
  disease is having his swallowing ability tested. His wife asks you why this is necessary. What is your best response?
  a. This is a routine assessment that is completed for every patient.
  b. The prescriber ordered this test to be done to prevent side effects of a new drug for your husband's disease.
  c. This test tells us where your husband's swallowing is now, because it may get worse as his disease progresses.
  d. We are concerned about whether we will need to place a feeding tube to give his medications.