Reginald Klot is a 72 y/o male who presents to ED with sudden onset of headache, nausea, vomiting and left-sided numbness. He has a history of hypertension and hyperlipidemia. These symptoms occurred approximately two hours ago. CT scan: rt carotid artery thrombolic occlusion. Plan: tPA. Dr. Emergin explains the procedure to Mr. Klot's wife in layperson's terms. What is the most likely diagnosis for Mr. Klot based on his symptoms and CT scan findings?
1) Migraine
2) Stroke
3) Sinusitis
4) Gastroenteritis
