A company collects data from a large number of participants who use wearable devices. The company stores the data in an Amazon DynamoDB table and uses applications to analyze the data. The data workload is constant and predictable. The company wants to stay at or below its forecasted budget for DynamoDB. Which solution will meet these requirements MOST cost-effectively?

• AUse provisioned mode and DynamoDB Standard-Infrequent Access (DynamoDB Standard-IA). Reserve capacity for the forecasted workload.
• BUse provisioned mode. Specify the read capacity units (RCUs) and write capacity units (WCUs).
• CUse on-demand mode. Set the read capacity units (RCUs) and write capacity units (WCUs) high enough to accommodate changes in the workload.
• DUse on-demand mode. Specify the read capacity units (RCUs) and write capacity units (WCUs) with reserved capacity.