In the Global Server Load Balancing (GSLB) configuration when dynamic proximity is implemented, the round trip time (RTT) between the _____________ and _____________ is measured to make the load decision. (Choose the correct option to complete the sentence.)
A . IP address of the client; each of the GSLB sites.
B . Local DNS of the client; each of the GSLB sites.
C . Local DNS of the client; each of the GSLB services.
D . IP address of the client; each of the GSLB services.
Answer: B