Correct option is A
Given:
Kiran is the father of Ravi.
Ravi is the brother of Kavya.
Here,

So, Kavya is Daughter of Kiran.
Hence, the correct answer is 'Option A'.
Kiran is the father of Ravi. Ravi is the brother of Kavya. Then how is Kavya related to Kiran?
Given:
Kiran is the father of Ravi.
Ravi is the brother of Kavya.
Here,

So, Kavya is Daughter of Kiran.
Hence, the correct answer is 'Option A'.
If 'T' is the father of 'P'. 'Q' is the daughter of 'P'. 'S' is the daughter of 'R' who is the mother of 'Q'. Then how is 'T' related to 'S'?
Pointing towards a photograph, Raghu said, 'She is the only daughter of my mother's father’s only daughter'. How is the lady related to Raghu's father?
‘B’ is the brother of ‘C’, ‘A’ is the sister of ‘B’. ‘E’ is the brother of ‘D’, ‘D’ is the daughter of ‘A’. How is ‘B’ related to ‘E’?
Alka introduced a man: “He is the only son of the father of my sister’s brother.” How is this person related to Alka?