In a certain code language,
A + B means ‘A is the sister of B’,
A @ B means ‘A is the brother of B’,
A - B means ‘A is the wife of B’,
and A # B means ‘A is the father of B’.
How is O related to V if ‘O + P # T @ G - V’?

The correct option is Wife's father's sister.

To determine how O is related to V, let's break down the given expression step-by-step based on the defined relationships:

Given Code Language Rules:
- A + B means ‘A is the sister of B’
- A @ B means ‘A is the brother of B’
- A - B means ‘A is the wife of B’
- A # B means ‘A is the father of B’

The given expression is: O + P # T @ G - V

Let's decode the expression from left to right:
1. O + P: O is the sister of P.
2. P # T: P is the father of T.
3. T @ G: T is the brother of G.
4. G - V: G is the wife of V (which means V is G's husband).

Now, let's analyze the relationship connecting O to V:
- Since G is the wife of V, V is married to G.
- Since T is the brother of G and P is the father of T, P is also the father of G.
- Therefore, P is V's wife's father (father-in-law).
- O is the sister of P, which makes O the sister of V's wife's father.

Thus, O is V's wife's father's sister.