In a certain code language,

‘M & N’ means ‘M is the wife of N’,

‘M @ N’ means ‘M is the brother of N’,

‘M $ N’ means ‘M is the father of N’,

‘M # N’ means ‘M is the son of N’.

Based on the above, how is T related to G if ‘T @ S # M & N $ G’?

The correct option is Brother.

Let us decode the given expression step-by-step using the relations provided in the question:

Given relationship definitions:
- ‘M & N’ means M is the wife of N.
- ‘M @ N’ means M is the brother of N.
- ‘M $ N’ means M is the father of N.
- ‘M # N’ means M is the son of N.

We are given the expression: ‘T @ S # M & N $ G’.

Let us analyze each part from right to left or left to right:

1. N $ G: N is the father of G.
2. M & N: M is the wife of N. Since N is the father of G and M is N's wife, M is the mother of G.
3. S # M: S is the son of M. Since M is the mother of G, S is the son of G's parents, which means S is the brother of G.
4. T @ S: T is the brother of S.

Since S is the brother of G, and T is the brother of S, it follows that T is also the brother of G.

Therefore, T is related to G as Brother.