Which AWS services should the Database Specialist consider?

A company is writing a new survey application to be used with a weekly televised game show.The application will be available for 2 hours each week.The company expects to receive over 500,000 entries every week, with each survey asking 2-3 multiple choice questions of each user.A Database Specialist needs to select a platform that is highly scalable for a large number of concurrent writes to handle the anticipated volume.