The real angle of dip, if a magnet is suspended at an angle of `30^(@)` to the magnetic meridian and the dip needle makes an angle of `45^(@)` with horizontal, is:
A. `tan^(-1)(sqrt(3)/(2))`
B. `tan^(-1)(sqrt(3))`
C. `tan^(-1)((sqrt(3))/(sqrt(2)))`
D. `tan^(-1)((2)/(sqrt(3)))`
