X is the only daughter of Y's grandfather's only son, Y's grandfather has only one child. How is X related to Y?

(A) Mother 

(B) sister 

(C) Paternal aunty

(D) Grandmother   

Ram said, "Sita is my paternal great-grandfather's only son's only daughter-in-law". How is Sita related to Ram?

(A) Maternal aunt 
(B) Paternal aunt 
(C) Mother 
(D) Sister

If 'A' is the son of 'B' and is the father of 'C', how is 'B' related to 'C'?

(A) Father
(B) Son
(C) Grandparent
(D) Grandchild