If AAA is a 3×33 \times 33×3 matrix and B=2AB = 2AB=2A, then det(B)\det(B)det(B) is equal to:
2det(A)2\det(A)2det(A)
4det(A)4\det(A)4det(A)
6det(A)6\det(A)6det(A)
8det(A)8\det(A)8det(A)