A read only news reporting site with a combined web and application tier and a database tier that
receives large and unpredictable traffic demands must be able to respond to these traffic
fluctuations automatically. What AWS services should be used meet these requirements?

A.
Stateless instances for the web and application tier synchronized using ElastiCache Memcached
in an autoscaling group monitored with CloudWatch, and RDS with read replicas

B.
Stateful instances for the web and application tier in an autoscaling group monitored with
CloudWatch, and multi-AZ RDS

C.
Stateful instances for the web and application tier in an autoscaling group monitored with
CloudWatch, and RDS with read replicas

D.
Stateless instances for the web and application tier synchronized using ElastiCache Memcached
in an autoscaling group monitored with CloudWatch, and multi-AZ RDS

Explanation:
“A readonly reporting site” – so stateless and read-replicas can be used to scale. Multi-AZ will not
provide the scaling requirements.