A 24-Year-Old Patient Is Hospitalized with the Onset of Guillain-Barré

A 24-year-old patient is hospitalized with the onset of Guillain-Barré syndrome. During this phase of the patient's illness, the most essential assessment for the nurse to carry out is

A) monitoring the cardiac rhythm continuously.
B) determining the level of consciousness q2hr.
C) evaluating sensation and strength of the extremities.
D) performing constant evaluation of respiratory function.