Briefing Amazon Knowledge

Which three services could you use to achieve this?

You are a solutions architect who has been asked to do some consulting for a US company that produces reuseable rocket parts. They have a new web application that needs to be built and this application must be
stateless. Which three services could you use to achieve this?

A.
AWS Storage Gateway, Elasticache & ELB

B.
ELB, Elasticache & RDS

C.
Cloudwatch, RDS & DynamoDb

D.
RDS, DynamoDB & Elasticache.