After Receiving Change-Of-Shift Report About the Following Four Patients,which Patient

After receiving change-of-shift report about the following four patients,which patient should the nurse assess first?

A) 39-year-old with pericarditis who is complaining of sharp, stabbing chest pain
B) 56-year-old with variant angina who is to receive a dose of nifedipine (Procardia)
C) 65-year-old who had a myocardial infarction (MI) 4 days ago and is anxious about the planned discharge
D) 59-year-old with unstable angina who has just returned to the unit after having a percutaneous coronary intervention (PCI)