Read the following information to answer the questions:
A+B means A is father of B.
A-B means A is sister of B.
A `xx`B means A is husband of B
`A div B` means A is wife of B.
Which of the following means S is granddaughter of R?

Options

A. `R + P + Q + S`
B. `K div R + P xx Q - L + S`
C. `K + R + P div Q + S - L`
D. None of these

Answer

C

Explanation

Choice 1,2 is not correct as sex of S is not known. Let us try the tree for choice 3:
`{:(K (-)hArr R (+)),(" "|),(" "P(-)hArr Q (+)),(" "|) ,(" "S (-) - L ):}`