A 34-year-old woman with a history of episodic migraines presents to her primary care physician seeking treatment options. She reports experiencing migraines approximately six times per month, characterized by unilateral throbbing headaches accompanied by nausea and sensitivity to light. She has tried over-the-counter medications with limited relief and is interested in exploring newer therapies. Question: Which of the following medications is an oral calcitonin gene-related peptide (CGRP) receptor antagonist approved for the acute treatment of migraine?