A woman presents with 30 minutes of double vision, vertigo, difficulty swallowing, and difficulty speaking. During her initial evaluation, these symptoms resolve and her neurologic exam returns to normal. Which of the following is the most appropriate diagnosis and the most likely affected artery?
Embolic ischemia - anterior cerebral artery
Thrombotic stroke - left anterior descending artery
Transient ischemic attack - middle cerebral artery
Transient ischemic attack - vertebrobasilar arteries