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A company seeks a reliable architecture for its application, which includes an Amazon RDS DB instance and two EC2 web servers in a single Availability Zone. After an accidental DB instance deletion caused a 24-hour outage, the company needs a solution to enhance infrastructure reliability. What steps should the solutions architect take?
A
Enable termination protection on one EC2 instance and delete the other, then update the DB to Multi-AZ with deletion protection.
B
Implement Multi-AZ with deletion protection for the DB and deploy EC2 instances in an Auto Scaling group with a Load Balancer across multiple AZs.
C
Add a DB instance, Amazon API Gateway, and AWS Lambda. Reconfigure the app to use Lambda via API Gateway, writing data to both DB instances.
D
Use an Auto Scaling group for EC2 across multiple AZs with CloudWatch for health monitoring, and update the DB to Multi-AZ with deletion protection, considering Spot Instances.