After an extended outage of the primary site, a large number of invalid tracks have accumulated on the R2 devices.
What can be done to minimize application response time impact, when resuming production on R1 devices?

A.
Invalidate the tracks on R1, write-disable R1, and refresh R1

B.
Run a restore command

C.
Run an R1 update followed by a failback

D.
Write-disable R2 and merge the track tables