If (3a + 1)2 + (b 1)2 + (2c 3)2 = 0, then the value of (3a + b + 2c) is equal to :

If (3a + 1)2 + (b 1)2 + (2c 3)2 = 0, then the value of (3a + b + 2

1.	If (3a + 1)2 + (b 1)2 + (2c 3)2 = 0, then the value of (3a + b + 2c) is equal to :
A.	3
B.	1
C.	2
D.	5
Answer» B. 1