How can the user achieve this?

A user has created a launch configuration for Auto Scaling where CloudWatch detailed monitoring
is disabled. The user wants to now enable detailed monitoring. How can the user achieve this?

A.
Update the Launch config with CLI to set InstanceMonitoringDisabled = false

B.
The user should change the Auto Scaling group from the AWS console to enable detailed
monitoring

C.
Update the Launch config with CLI to set InstanceMonitoring.Enabled = true

D.
Create a new Launch Config with detail monitoring enabled and update the Auto Scaling group

Explanation:
CloudWatch is used to monitor AWS as well as the custom services. To enable detailed instance
monitoring for a new Auto Scaling group, the user does not need to take any extra steps. When
the user creates the AutoScaling launch config as the first step for creating an Auto Scaling group,
each launch configuration contains a flag named InstanceMonitoring.Enabled. The default value of
this flag is true. When the user has created a launch configuration with
InstanceMonitoring.Enabled = false it will involve multiple steps to enable detail monitoring. The
steps are:
Create a new Launch config with detailed monitoring enabled
Update the Auto Scaling group with a new launch config
Enable detail monitoring on each EC2 instance