Reference Material:

https://docs.aws.amazon.com/autoscaling/application/userguide/application-auto-scaling-tutorial.html
After completing this tutorial, you’ll know how to:
Use scheduled scaling to add extra capacity to meet a heavy load before it arrives, and then remove the extra capacity when it's no longer required.
Use a target tracking scaling policy to scale your application based on current resource utilization.
Vote for C
https://docs.aws.amazon.com/autoscaling/application/userguide/what-is-application-auto-scaling.html and https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/AutoScaling.html
With Application Auto Scaling, you create a scaling policy for a table or a global secondary index. The scaling policy specifies whether you want to scale read capacity or write capacity (or both), and the minimum and maximum provisioned capacity unit settings for the table or index.
Answer: C