7. Read the following information carefully and then answer the question given below.
1. AΔB means A is mother of B.
2. A@B means A is sister of B.
3. A*B means A is father of B.
4. A#B means A is brother of B.

Which of the following means R is uncle of T ?

1. R*P#SΔQ@T

2. S*P#R*U#T

3. P*R#Q@S*T

4. P*R@Q@S*T

Correct Answer :

P*R#Q@S*T