Two vectors `vec(A) and vec(B)` inclined at an angle `theta` have a resultant `vec(R )` which makes an angle `alpha` with `vec(A)`. If the directions of `vec(A) and vec(B)` are interchanged, the resultant will have the same
A. magnitude the same
B. direction reverses and megnitude is doubled
C. magnitude as well as direction
D. Neither
