What should an Architect recommend when UC has PI issues and has to be fixed immediately?

Universal Containers (UC) is using sales and service Cloud. They have two major releases and four minor releases every year. They have deployment (dev), integration, user acceptance (UAT), staging, and hotflix sandboxes.

What should an Architect recommend when UC has PI issues and has to be fixed immediately?
A . Fix the issue in staging and deploy it into production.
B. Fix the issue in hotflix, test, and deploy to production.
C. Fix the issue in development, test, UAT, and deploy to production.
D. Follow the release management process to move to production.

Answer: B