CBSE Class 12 Mathematics 2026 Main Paper 65/3/2 · Q151 Marksmatrix_order CBSE Class 12 Mathematics 2026 Main Paper 65/3/2 · Question 15 (Matrices) If B[1 2 3]=[[1,2,3],[0,1,1],[2,0,1]], what order must B have? (A) 1×3(B) 3×1(C) 3×3(D) 1×1