A Company Wants to Host a Web Application on AWS

Multiple Choice

A company wants to host a web application on AWS that will communicate to a database within a VPC. The application should be highly available. What should a solutions architect recommend?

A) Create two Amazon EC2 instances to host the web servers behind a load balancer, and then deploy the database on a large instance.
B) Deploy a load balancer in multiple Availability Zones with an Auto Scaling group for the web servers, and then deploy Amazon RDS in multiple Availability Zones.
C) Deploy a load balancer in the public subnet with an Auto Scaling group for the web servers, and then deploy the database on an Amazon EC2 instance in the private subnet.
D) Deploy two web servers with an Auto Scaling group, configure a domain that points to the two web servers, and then deploy a database architecture in multiple Availability Zones.