Read the following information carefully and then answer the questions given below.
i)A `Delta`B means A is mother of B.
ii) A ©``B means A is sister of B.
iii) A*B means A is father of B
iv) A`beta` B means A is brother of B.
Which of the following means R is uncle of T?

Options

A. `R ^(**) P beta S Delta Q **T`
B. `S ^(**) P beta R ^(**) U beta T`
C. `P ^(**) R beta Q ^(**) S ^(**)T`
D. None of these

Answer

C

Explanation

Choice 4 is wrong as R is following by a female sign. In choice 1, generations gap between R and T is `1 + 0 + 1 + 0 =2.` So, 1 is wrong. In choice 3, gap between R and T is `0 + 0 +1= 1.` So, 3 could be correct . Let us draw its torr .
`{:(P (+)),( |),(R (+)- Q(-)- S(""^(**))),(" "|),(" "T):}`
Indeed R is an uncle of T here.