A 70-year-old with active chest pain at rest and dynamic ST depressions is scheduled for elective abdominal aortic aneurysm repair in 2 days. Which perioperative step is most appropriate?AProceed to surgery with intraoperative beta-blockade started on the day of surgeryBOrder routine coronary angiography solely to ''clear'' him for surgeryCPerform dobutamine stress echo tomorrow and proceed regardless of resultDStart aspirin and proceed; symptoms will declare themselves intraoperativelyEDefer the noncardiac surgery to evaluate and treat the active cardiac conditionCheck my answer