A 68-year-old man presents with sudden onset right-sided weakness and expressive dysphasia 1 hour ago. CT head shows no haemorrhage. He is independent at baseline and has no contraindications to thrombolysis. What is the most appropriate next step?AStart Aspirin 300 mg orally immediatelyBOffer intravenous Thrombolysis with Alteplase after discussing risks and benefitsCStart Clopidogrel 75 mg orally immediatelyDArrange carotid endarterectomy before any medical treatmentEWithhold treatment until an MRI brain is performedCheck my answer