Which approach should they use?

The current Dress4win system architecture has high latency to some customers because it is located in one data center. As of a future evaluation and optimizing for performance in the cloud, Dresss4win wants to distribute its system architecture to multiple locations when Google cloud platform.

Which approach should they use?
A . Use regional managed instance groups and a global load balancer to increase performance because the regional managed instance group can grow instances in each region separately based on traffic.
B . Use a global load balancer with a set of virtual machines that forward the requests to a closer group of virtual machines managed by your operations team.
C . Use regional managed instance groups and a global load balancer to increase reliability by providing automatic failover between zones in different regions.
D . Use a global load balancer with a set of virtual machines that forward the requests to a closer group of virtual machines as part of a separate managed instance groups.

Answer: A