For a Return to Zero Data Format _________

Multiple Choice

For a return to zero data format _________.

A) a single pulse during a bit time represents a 0 and absence of a pulse represents a 1
B) a change during a bit time represents a 1 and no change represents a 0
C) a single pulse during a bit time represents a 1 and absence of a pulse represents a 0
D) the format is meaningless because there is no return to zero data format