What is likely to be the problem?

An organization is running multiple applications for their customers. Each application is deployed by running a base AWS CloudFormation template that configures a new VPC. All applications are run in the same AWS account and AWS Region A sysops administrator has noticed that when trying to deploy the same AWS CloudFormation stack, it fails to deploy

What is likely to be the problem?
A . The Amazon Machine Image used is not available in that region
B . The AWS CloudFormation template needs to be updated to the latest version
C . The VPC configuration parameters have changed and must be updated in the template
D . The account has reached the default limit for VPCs allowed

Answer: D