What should the consultant do first to avoid any issues?

A consultant for university has built customizations in a sandbox environment that is a different version from the production org.

What should the consultant do first to avoid any issues?
A . Package the customizations, refresh the sandbox and reinstall the customization.
B . Manually update the production org by installing the release update from Github.
C . Submit a case to Salesforce Support to update the production org.
D . Deploy the customizations into the production org via change sets.

Answer: A