A 55-year-old previously athletic man presents with history

A 55-year-old previously athletic man presents with history of anterior wall MI, poorly controlled HTN, and daytime somnolence. He also has a history of PAF and was found to have elevated CRP. A modifiable risk factor for ischemic heart disease that should be further evaluated in this patient is: a. Obstructive sleep apnea b. Elevated homocysteine c. Elevated Lp(a) d. High sensitivity CRP level