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Amazon EC2 Auto Scaling needs to terminate an instance from Availability Zone (AZ) us-east-1a as it has the most number of instances amongst the Availability Zone (AZs) being used currently. There are 4 instances in the Availability Zone (AZ) us-east-1a like so: Instance A has the oldest launch template, Instance B has the oldest launch configuration, Instance C has the newest launch configuration and Instance D is closest to the next billing hour. Which of the following instances would be terminated per the default termination policy?