G is the father of H. I is the sister of G. How is H related to I?

C. NIECE

If A + B means A is the brother of B, A - B means A is the sister of B, and A × B means A is the father of B, what is the relationship of C if A + C - B?

A. C IS THE SISTER OF B

A is the brother of B. C is the sister of A. How is C related to B?

A. SISTER

If J is the daughter of K, and K is the son of L, what is the relationship of L to J?

B. GRANDFATHER

D is the father of E and F. G is the sister of E. How is G related to F?

A. SISTER