xz  company requires to build its network based on modular enterprise network architecture.Company  Z  has  1  R&D base in Shenzhen and Xi’an , and an office building in Beijing and Shanghai ; it has offices with more than  50  people in  23  capital cities ; it has small offices with no more than  8  people in  200  small and medium-sized cities .There are usually more than  200  market and technical personnel on business trips at any given time .Company  Z  strictly prohibits employees from using the company network to visit websites that are not related to work.According to these circumstances, the network module that  Z  company should have is  ____  .

xz  company requires to build its network based on modular enterprise network architecture.Company  Z  has  1  R&D base in Shenzhen and Xi’an , and an office building in Beijing and Shanghai ; it has offices with more than  50  people in  23  capital cities ; it has small offices with no more than  8  people in  200  small and medium-sized cities .There are usually more than  200  market and technical personnel on business trips at any given time .Company  Z  strictly prohibits employees from using the company network to visit websites that are not related to work.According to these circumstances, the network module that  Z  company should have is  ____  .
A . Large type branch network
B . far away  /  distributed office network
C . Internet  access
D . dedicated line  /  packet switched access

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Answer:   CD