If the planes x - cy - bz = 0 , cx - y + az = 0 and bx + ay - z = 0 pass through a straight

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Q 1287012887.     If the planes x - cy - bz = 0 , cx - y + az = 0 and bx + ay - z = 0 pass through a straight line, then the value of a^2 + b^2 + c^2 + 2abc is
A

5

B

3

C

6

D

1

#### HINT

(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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