You have a load balancer configured for VPC, and all backend 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?
A . The load balancer was not configured to use a public subnet 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 properly 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