A 4-bit binary up counter has an input clock frequency of 20 kHz. The frequency of the most significant bit is ________.

A 4-bit binary up counter has an input clock frequency of 20 kHz. The

1.	A 4-bit binary up counter has an input clock frequency of 20 kHz. The frequency of the most significant bit is ________.
A.	1.25 kHz
B.	2.50 kHz
C.	160 kHz
D.	320 kHz
Answer» B. 2.50 kHz