Please help me with the following question!!!!

Question

If     , where

  , then the determinant of    is equal to:

A.) 5

B.) -5

C.) 0

D.) Can't be determined

Answer 1

subtracting row 1 from row 2 does not affect the determinant. Swapping rows of a determinant (in this case, rows 1 and 3) multiplies the determinant by -1. Thus, |W| = - |D| = - (-5) = 5

Answer 2

If you perform the process to determine the determinant of W you shall see that all terms are opposite those of G.

|W| = -5