In a Convergent Circuit with Three Switched Inputs, the Signal

Multiple Choice

In a convergent circuit with three switched inputs, the signal at the output is bad when the switch is on the first convergent input. When the switch is changed to second of the convergent inputs the output is correct. What can you conclude?

A) The switch could be bad.
B) There is a problem between the first convergent input and input to the system.
C) There is a problem between the convergent switch and the output of the system.
D) Both A and C.
E) Both A and B