A 58-year-old man with a history of hypertension and hyperlipidemia presents to the emergency department with 3 hours of acute-onset substernal chest pain radiating to his left arm. Vital signs are: BP 102/68 mmHg, HR 108 bpm, RR 20/min. Electrocardiography shows ST elevation in leads V1-V4 with reciprocal ST depression in leads II, III, and aVF. Troponin I is 2.4 ng/mL (normal <0.04). Emergent coronary angiography reveals complete occlusion of the left anterior descending (LAD) artery with TIMI 0 flow. Percutaneous coronary intervention is performed with aspiration thrombectomy and drug-eluting stent placement, successfully restoring TIMI 3 flow. However, angiography also demonstrates severe diffuse atherosclerotic disease throughout the entire LAD with multiple areas of 70-90% stenosis in non-culprit segments. Despite anatomically successful reperfusion, myocardial salvage remains limited. Which of the following best explains the primary mechanism limiting myocardial salvage in this clinical scenario?

1. A)Failure to revascularize the right coronary artery and left circumflex artery
2. B)Mechanical rupture of the left ventricular free wall due to transmural necrosis
3. C)Microvascular dysfunction and the no-reflow phenomenonGABARITO
4. D)Progressive thrombosis within the stented LAD segment despite adequate antiplatelet therapy
5. E)Inadequate collateral blood flow from non-LAD coronary vessels