A(n) ____ is often used in professional software development.

________ are lines that display on the ruler to give a visual indication of where the pointer is positioned

A) Gridlines B) Indents C) Guides D) Markers

In forward error correction, the receiver

a. can always correct all errors b. can correct some types of errors by requesting a retransmission c. can correct some types of errors without requesting a retransmission d. requests a retransmission whenever errors are detected