Social mobility tends to be lower in less stratified societies

As a part of central office control, supervisors should keep a record of hours worked and expenses

Indicate whether the statement is true or false

Many "T1" lines that carriers provide today use ________ in the local loop

A) 1-pair voice-grade UTP B) 2-pair voice-grade UTP C) 1-pair data-grade UTP D) 2-pair data-grade UTP