What is meant by the expression ‘physical node size’?

A.
the number of subscribers who are served by the HFC network

B.
the number of potential subscribers who receive signals from and transmit signals to an
optical receiver and transmitter in an optical node

C.
the number of subscribers who are connected by coaxial cable to a single optical node

D.
the size of the area that can be served by a single optical transmitter

Explanation: