While Creating the Wait Condition Resource in AWS CloudFormation, a SysOps

Multiple Choice

While creating the wait condition resource in AWS CloudFormation, a SysOps Administrator receives the error "received 0 signals out of the 1 expected from the EC2 instance". What steps should be taken to troubleshoot this issue? (Choose two.)

A) Confirm from the cfn logs that the cfn-signal command was successfully run on the instance.
B) Try to re-create the stack with a different IAM user.
C) Check that the instance has a route to the Internet through a NAT device.
D) Update the AWS CloudFormation stack service role to have iam:PassRole permission.
E) Delete the existing stack and attempt to create a new once.