CBSE Class 12 Mathematics 2026 Main Paper 65/1/2 · Q131 Marksmatrix_order CBSE Class 12 Mathematics 2026 Main Paper 65/1/2 · Question 13 (Matrices) Which cannot be the order of a column matrix? (A) 1×2(B) 2×1(C) 1×1(D) m×1 for positive integer m