Class 12 Matrices · Mcq Single Correct1 Marksmatrix_dimensions Class 12 Maths · Matrices · Mcq Single Correct #19 A has order 3×n and B has order m×5. Assuming C=5A+3B is defined, what is the order of C? (A) 3×5 and m=n(B) 3×5(C) 3×3(D) 5×5