An online education platform experiences lag and buffering during peak usage hours, when thousands of students access video lessons concurrently. A solutions architect needs to improve the performance of the education platform. The platform needs to handle unpredictable traffic surges without losing responsiveness. The platform must provide smooth video playback performance at all times. The platform must create multiple copies of each video lesson and store the copies in various bitrates to serve users who have different internet speeds. The smallest video size is 7 GB. Which solution will meet these requirements MOST cost-effectively?