For the differential equation (D³ - D² + D -1) [y(t)] = 0, the root of auxiliary equation are

For the differential equation (D³ - D² + D -1) [y(t)] = 0, the root

1.	For the differential equation (D³ - D² + D -1) [y(t)] = 0, the root of auxiliary equation are
A.	-j, j, 1
B.	-j, j, 2
C.	1, 2, j
D.	1, 2, -j
Answer» B. -j, j, 2