A user is launching an instance. He is on the “Tag the instance” screen. Which of the below mentioned information will
not help the user understand the functionality of an AWS tag?

A.
Each tag will have a key and value

B.
The user can apply tags to the S3 bucket

C.
The maximum value of the tag key length is 64 unicode characters

D.
AWS tags are used to find the cost distribution of various resources

Explanation:
AWS provides cost allocation tags to categorize and track the AWS costs. When the user applies tags to his AWS
resources, AWS generates a cost allocation report as a comma-separated value (CSV) file. with the usage and costs
aggregated by those tags. Each tag will have a key-value and can be applied to services, such as EC2, S3, RDS, EMR,
etc. The maximum size of a tag key is 128 unicode characters.