A Sys Admin Has Created a Shopping Cart Application and Hosted

Multiple Choice

A sys admin has created a shopping cart application and hosted it on EC2. The EC2 instances are running behind ELB. The admin wants to ensure that the end user request will always go to the EC2 instance where the user session has been created. How can the admin configure this?

A) Enable ELB cross zone load balancing
B) Enable ELB cookie setup
C) Enable ELB sticky session
D) Enable ELB connection draining