There Has Been a Change in Requirements for Two Countries

Multiple Choice

There has been a change in requirements for two countries where PCI virtual instances exist. As such three virtual instances need to be added in both countries' PCI environments, and two instances need to be removed. Which of the following is the BEST way to ensure compliance is met in those two countries?

A) By the effective date of the new requirement, in each country, remove the two out-of-compliance virtual instances.
B) By the effective date of the new requirement, in each country, implement the three new virtual instances.
C) By the effective date of the new requirement, in each country implement the three new virtual instances. After a month of testing remove the two out-of-compliance virtual instances.
D) By the effective date of the new requirement, in each country, remove the two out-of-compliance virtual instances and implement the three new virtual instances.