Your company has built a workload management solution for a deepwater drilling company. The application sends the workload detail before each shift starts. Due to the recent change in the regulations, there has to be a worklog file that needs to be sent to each Shift Manager at the time of shift start. As per the requirements, the file can only be accessed by the targeted user and it should only be allowed to access within a given shift timeline and needs to be password protected as well. Because there is a very short deadline, the management has tasked you to come up with a reliable, secure and cost-effective solution.

Answer options:

A.Use S3 to store the files inside individual folders for shift managers in a single bucket. Enable the S3 Website Hosting and control the access via bucket policy.
B.Use Amazon WorkDocs to share files with shift managers via email. Set the expiration date and password on the link.
C.Upload the files to EBS and build an application which can run on EC2 to share the files with AWS Simple Email Service.
D.Upload the files to S3 and develop a custom application which can be hosted on S3. Use the AWS Cognito to allow the restricted, time-based access.

Correct Answer: B
Option A is INCORRECT because bucket policy and static web hosting will not be enough to cater to all the requirements like restricted time-based access.
Option B is CORRECT because Workdocs supports features to share restricted, time-based files. And with the downloadable clients, it would be easy for the users to access those files.
Options C and D are INCORRECT. Although it is possible to build a solution with the given requirements, it would be a waste of resources to build a custom application that can already be served with AWS Workdocs.