A 70-year-old man reports transient left arm weakness lasting 15 minutes that resolved completely. He presents 6 hours later with a normal examination. According to stroke prevention principles, what is the most appropriate management?AReassure and discharge without treatmentBCommence aspirin and organise urgent assessment in a TIA clinic or stroke serviceCStart high-dose warfarin immediatelyDWait for an outpatient MRI before starting any antithrombotic therapyEStart thrombolysis as for acute strokeCheck my answer