After a Performance Analysis, a Customer Plants to Reorganize His

After a performance analysis, a customer plants to reorganize his Adaptive Flash Cache (AFC) configuration and wants to raise it from 256GB to 768 GB. Which action is needed to take advantage of the new AFC configuration?

A) Increase the current AFC configuration to reflect the additional space.
B) Remove the old AO configuration and recreate a new one.
C) Run tunesys after raising the AFC to take advantage of the additional space.
D) Remove flash cache for all VVs and then run createflashcache.