Angle between the line joining the origin to the points of intersection of the curves \[2{{x}^{2}}+3{{y}^{2}}+10x=0\] and \[3{{x}^{2}}+5{{y}^{2}}+16x=0\] is

• A.   \[{{\tan }^{-1}}\frac{3}{2}\]   
• B.   \[{{\tan }^{-1}}\frac{4}{5}\]
• C.   \[{{90}^{o}}\]     
• D.   None of these