A 70-year-old man is experiencing a severe nosebleed. When you arrive, you find him leaning over a basin , Which contains an impressive amount of blood. He has a history of coronary artery disease, diabetes, and migraine headaches. His bp is 180/100 and his heart rate is 100 beats/ min. Which of the following is the most likely contributing factor to the nosebleed?
a. High blood pressure
b. Coronary artery disease
c. Diabetes
d. Migraine headaches