Directions: Study the following information carefully and answer the questions given below:

There are nine persons in a family and there are three generations in the family. A and B are two daughters-in-law of C, who is the sister-in-law of D. D is the only sister of E. E has no brother. F and G are the sons of H and I respectively. I is not married to B. Either both or none of the parent is alive. C has no siblings.