The value of \([\frac{{{{\sin }^2}24^\circ + si{n^2}66^\circ }}{{{{\cos }^2}24^\circ + {{\cos }^2}66^\circ }} + {\sin ^2}61^\circ + cos61^\circ \sin 29^\circ ]\) is equal to∶

• A. 2
• B. 3
• C. 1
• D. 0