A Recent AWS CloudFormation Stack Update Has Failed and Returned

Multiple Choice

A recent AWS CloudFormation stack update has failed and returned the error UPDATE_ROLLBACK_FAILED . A SysOps Administrator is tasked with returning the CloudFormation stack to its previous working state. What must be done to accomplish this?

A) Fix the error that caused the rollback to fail, then select the Continue Update Rollback action in the console.
B) Select the Update Stack action with a working template in the console.
C) Update the password of the IAM user, then select the Continue Update Rollback action in the console.
D) Use the AWS CLI to manually change the stack status to UPDATE_COMPLETE , then continue updating the stack with a working template. Use the AWS CLI to manually change the stack status to UPDATE_COMPLETE , then continue updating the stack with a working template.