In a certain code language,
'M + N' means 'M is the daughter of N',
'M - N' means 'M is the father of N',
'M * N' means 'M is the wife of N',
'M $ N' means 'M is the son of N'.
Based on the above, how is A related to C if 'A + B * C'?

Let's decode the given relation expression 'A + B * C' step by step:
A + B: A is the daughter of B. (A is Female → Generation -1 relative to B)

B * C: B is the wife of C. (B is Female, C is Male, and they are a married couple)

Since A is the daughter of B, and B is married to C (where C is the husband), A must be the daughter of C as well.

Therefore, A is the daughter of C.