J is the father of L. N is the daughter of K. Z is the son of P. J is married to K. L is the brother of O. P is married to N. Which of the following statements is/are true?<br>(I) J is the father-in-law of P.<br>(II) Z is the niece of O.<br>(III) K is the grandmother of Z.
- A. Both I and II
- B. All of them (I, II, and III)
- C. Both I and III ✓
- D. Only II
Correct Answer: C. Both I and III
Explanation
J and K are a married couple with children L, N, and O. P is married to N (daughter), making J the father-in-law of P (I is true). Z is the son (not niece) of N and P (II is false). K is N's mother, making K the grandmother of Z (III is true).