Express the following finite discrete-time signal as the difference of two unit step sequences: x[n] = 1, for 0 ≤ n ≤ 5; and 0 otherwise.

Express the following finite discrete-time signal as the difference of

1.	Express the following finite discrete-time signal as the difference of two unit step sequences: x[n] = 1, for 0 ≤ n ≤ 5; and 0 otherwise.
A.	u[n] – u[n - 6]
B.	u[n - 5] – u[n - 6]
C.	u[n - 6] – u[n - 5]
D.	u[n] – u[n - 5]
Answer» B. u[n - 5] – u[n - 6]