Correct answer - "Enable Health Checks" : To discover the availability of your EC2 instances, a
load balancer periodically sends pings, attempts connections, or sends requests to test the EC2
instances. These tests are called health checks. The status of the instances that are healthy at
the time of the health check is InService. The status of any instances that are unhealthy at the
time of the health check is OutOfService.
"Enable Stickiness" - Enables the load balancer to bind a user's session to a specific instance
"Enable Multi AZ deployments" - Its a good practice to divide instances in more than one
availability zone however you still need a way to check the health status of the instances
"Enable SSL" - SSL encrypts transmission of data between a web server and a browser