In the digital clock project, the 1 pps signal is used as a synchronous clock for all of the counter stages, which are ________.

In the digital clock project, the 1 pps signal is used as a synchronou

1.	In the digital clock project, the 1 pps signal is used as a synchronous clock for all of the counter stages, which are ________.
A.	advanced BCD counters
B.	MOD-6 counters
C.	synchronous cascaded
D.	1 pulse per second
Answer» D. 1 pulse per second