The correct answer is: B. Amazon Elastic Block Store (EBS).
Amazon Elastic Block Store (EBS) is a block storage service that provides persistent block storage volumes for use with Amazon Elastic Compute Cloud (EC2) instances. EBS volumes are highly available, durable, and scalable, and they can be attached to any EC2 instance in any region. EBS volumes are ideal for storing data that needs to be accessed frequently, such as databases, application data, and log files.
CloudWatch is a monitoring service for AWS cloud resources and applications. CloudWatch collects metrics, events, and metadata from AWS resources and applications, and stores them in a central repository. CloudWatch can be used to monitor the performance, availability, and overall health of AWS resources and applications.
AWS Import/Export is a service that enables you to import and export large amounts of data into and out of AWS using physical storage devices. AWS Import/Export is a good option for importing and exporting data that is too large to be transferred over the internet.
Therefore, the correct answer is B. Amazon Elastic Block Store (EBS).