The correct answer is C. Either 1 or 2.
Statement 1: P is the brother of V.
If P is the brother of V, then M is the uncle of P.
Statement 2: The daughter of N is the granddaughter of V.
If the daughter of N is the granddaughter of V, then M is the grandfather of P.
Therefore, either statement 1 or statement 2 is sufficient to determine that M is related to P as an uncle or grandfather.