Briefing Amazon Knowledge

Which of the following is an example of a good DynamoDB…

Which of the following is an example of a good DynamoDB hash key schema for provisioned throughput
efficiency?

A.
User ID, where the application has many different users.

B.
Status Code where most status codes are the same

C.
Device ID, where one is by far more popular than all the others.

D.
Game Type, where there are three possible game types