The decision regarding the number of optical fibers to install (fiber strand count) in a backbone depends largely on all of the following EXCEPT:

The decision regarding the number of optical fibers to install (fiber strand count) in a backbone depends largely on all of the following EXCEPT:
A . Level of multiplexing
B . Intended end-user applications
C . Physical topology of the cabling system
D . Distance between telecommunications room (TR)
E . Cabling system configuration

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Answer: D