A 64-year-old presents within 12 hours of minor ischemic stroke (NIHSS 2) attributed to high-grade intracranial atherosclerosis. CT head shows no bleed. What is the optimal early antiplatelet strategy?AAspirin alone immediately then clopidogrel after 2 weeksBDual antiplatelet therapy with aspirin plus clopidogrel for 21-90 daysCAspirin plus ticagrelor indefinitelyDFull-dose heparin bridge to warfarinENo antithrombotic therapy for 7 daysCheck my answer