You work as a design specialist at Certkiller .com. Certkiller .com needs to do a major update to their ERP system over a three-day weekend. The changes will require several phases of software upgrades and changes.
What should you do to reduce Certkiller .com’s risk if a step fails?

A.
Use the fastest drives possible to minimize latency.

B.
Ensure a proper change management document has been done.

C.
Use a Point Time Copy after each phase to provide quick rollbacks.

D.
Ensure adequate backups are performed prior to beginning the project.