JEE Main 2021 Mathematics question

Let the system of linear equations 4x + y + 2z = 0 2x – y + z = 0 x + 2y + 3z = 0, ,. has a non-trivial solution. Then which of the following is true ?

• (A) = 6, Correct
• (B) = 2,
• (C) = 3,
• (D) = –6,