What should the architect recommend?

Universal Containers is about to begin the release of a major project. To facilitate this, they have several sandboxes to make their deployment train. These sandboxes are a mix of preview and non-preview instances.

What should the architect recommend?
A . Refresh all non-preview sandboxes during the release preview window.
B. Refresh all non-preview sandboxes when the release management team has time.
C. No advice needed, mixing instance types is important for regression testing.
D. Contact support to rollback the release when Salesforce upgrades the sandboxes,

Answer: A