Correct Answer: D % P + K @ R & F

Solution : Let's check the options –
First option: D % P # K + R % F
According to the given information, the family tree will be –

Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
From the above diagram, D is the mother-in-law of F's mother's sister.
Second option: F @ R + K + P % D
According to the given information, the family tree will be –

Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
From the above diagram, D is the niece of F.
Third option: P & D % R + K % F
According to the given information, the family tree will be –

Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
From the above diagram, D is the grandmother of F.
Fourth option: D % P + K @ R & F
According to the given information, the family tree will be –

Here, the quadrilateral represents the male, and the circular figure represents the female in the figure.
From the above diagram, P, K, and R are the siblings. Thus, D is the wife of F.

Hence, the fourth option is correct.