JEE Main 2021 Mathematics question

The system of linear equations 3x – 2y – kz = 10, 2x – 4y – 2z = 6, x + 2y – z = 5m is inconsistent if :

• (A)k = 3, m =
• (B)k3, m
• (C)k3, m
• (D)k = 3, m Correct