An e-commerce company runs its flagship website on its on-premises Linux servers. Recently, the company suffered outages after announcing huge discounts on its website. The web tier of the application is fronted by Elastic Load Balancer while the database tier is built on RDS MYSQL database. The company is planning to run heavy discounts for the upcoming holiday sales season. The company is looking for a solution to avoid any similar outages as well as quickly ramp up the ability to handle huge traffic spikes. As an AWS Certified Solutions Architect Professional, which of the following would you suggest as the most optimal solution that can enhance the application's capabilities to handle the sudden spikes in user traffic without significant development effort?