Read the information given below and answer the questions that follow.
I. A, B, C, D, E and F are six members of a family.
II. One couple has parents and their children in the family.
III. A is the son of C and E is the daughter of (1)
IV. D is the daughter of F who is the mother of E.
Which of the following pairs is the parents of the couple?
(1) A B
(2) B C
(3) A F
(4) C F