When both input signals are the same, a common signal element due to the two inputs can be defined as the ________ of the two signals.

When both input signals are the same, a common signal element due to t

1.	When both input signals are the same, a common signal element due to the two inputs can be defined as the ________ of the two signals.
A.	difference
B.	sum
C.	average of the sum
D.	product
Answer» D. product