A User Has Created a Launch Configuration for Auto Scaling

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