$$A + B$$ means ‘A is son of B’
$$A - B$$ means ‘A is husband of B’
$$A \times B$$ means ‘A is sister of B’
$$A \div B$$ means ‘A is daughter of B’
If $$F \times R \times S \div G - P \div X$$, then how is X related to R ?

A

Maternal grandfather or maternal grandmother

B

Father or mother

C

Paternal grandfather or paternal grandmother

D

Grandson or granddaughter