The signal given by the equation ( sum_{n=-{ infty}}^{ infty}|x(n)|^2 ) is known as __________

The signal given by the equation ( sum_{n=-{ infty}}^{ infty}|x(n)|^2

1.	The signal given by the equation ( sum_{n=-{ infty}}^{ infty}\|x(n)\|^2 ) is known as __________
A.	Energy signal
B.	Power signal
C.	Work done signal
D.	None of the mentioned
Answer» B. Power signal