Evaluate : $\sin^{-1}\large\frac{4}{5}$$+\sin^{-1}\large\frac{5}{13}$$+\sin^{-1}\large\frac{16}{65}$

Question

$(a)\;1\qquad(b)\;\large\frac{\pi}{2}\qquad$$(c)\;\large\frac{\pi}{4}$$\qquad(d)\;0$