$\mathrm{A}$ told $\mathrm{B}$ that $\mathrm{C}$ is his father's nephew, $\mathrm{D}$ is $\mathrm{A}$'s cousin but not the brother of $\mathrm{C}$. How is $\mathrm{D}$ related to $\mathrm{C}$?

A is the father of C, but C is not his son. E is the daughter of C. F is the spouse of A. B is the brother of C. D is the son of B. G is the spouse of B. H is the father of G.

Who among the following is the grandmother of D?

If, A is the father of C. But C is not his son.
E is the daughter of C.
F is the spouse of A
B is the brother of C.
D is the son of B.
G is the spouse of B.
H is the father of G.

Who is the son of F?