If `vecA=4hati-3hatj` and `vecB=6hati+8hatj` then magnitude and direction of `vecA+vecB` will be

Options

A. `5, tan^(-1)(3//4)`
B. `5sqrt(5),tan^(-1)(1//2)`
C. `10,tan^(-1)(5)`
D. `25, tan^(-1)(3//4)`

Answer

B