You Want to Configure Autohealing for Network Load Balancing for a Group

You want to configure autohealing for network load balancing for a group of Compute Engine instances that run in multiple zones, using the fewest possible steps. You need to configure re-creation of VMs if they are unresponsive after 3 attempts of 10 seconds each. What should you do?

A) Create an HTTP load balancer with a backend configuration that references an existing instance group. Set the health check to healthy (HTTP) Create an HTTP load balancer with a backend configuration that references an existing instance group. Set the health check to healthy (HTTP)
B) Create an HTTP load balancer with a backend configuration that references an existing instance group. Define a balancing mode and set the maximum RPS to 10.
C) Create a managed instance group. Set the Autohealing health check to healthy (HTTP) Create a managed instance group. Set the Autohealing health check to
D) Create a managed instance group. Verify that the autoscaling setting is on.