Which options are probable causes of this behavior?

You have a load balancer configured for VPC, and all back-end Amazon EC2 instances are in service.

However, your web browser times out when connecting to the load balancer’s DNS name.

Which options are probable causes of this behavior? Choose 2 answers
A . The load balancer was not configured to use a public sub net with an Internet gateway configured
B . The Amazon EC2 instances do not have a dynamically allocated private IP address
C . The security groups or network ACLs are not property configured for web traffic.
D . The load balancer is not configured in a private subnet with a NAT instance.
E . The VPC does not have a VGW configured.

Answer: A, C