The equation of a projectile is \[y=\sqrt{3}x-\frac{\text{g}{{\text{x}}^{2}}}{20}\] The angle of projection is given by

• A. \[\text{tan}\theta \,\text{=}\frac{1}{\sqrt{3}}\]    
• B.        \[\text{tan}\theta \,\text{=}\,\sqrt{3}\]
• C.  \[\frac{\pi }{2}\]                
• D. zero.