How should the components be set up for this environment?

A.
Configure GSLB for NetScaler. Place the StoreFront servers and Delivery Controllers in the internal network.

B.
Configure high availability between the London and New York datacenter. Place the StoreFront servers and Delivery Controllers in the internal network.

C.
Configure a back-up vServer at each site. Place the StoreFront servers and Delivery Controllers in the internal network.

D.
Configure GSLB for the StoreFront servers and Delivery Controllers and place them in the internal network.