As an AWS certified developer associate, you are aws video

Full Certification Question

As an AWS certified developer associate, you are working on an AWS CloudFormation template that will create resources for a company's cloud infrastructure. Your template is composed of three stacks which are Stack-A, Stack-B, and Stack-C. Stack-A will provision a VPC, a security group, and subnets for public web applications that will be referenced in Stack-B and Stack-C. After running the stacks you decide to delete them, in which order should you do it?