In a family of eight members $A, C$, P, Q, M, N, G and H. N is the son of $G$ and $N$ has only one son. $Q$ is brother-in-law of $\mathrm{N} . \mathrm{M}$ is the mother of A. C is the only-granddaughter of $H$, who is the mother of $P$ and wife of G. Who is the father of C?
(a) $\mathrm{N}$
(b) $\mathrm{H}$
(c) $Q$
(d) G