In a row of 6 seats, F is sitting at one end, and E is sitting next to F. D is sitting to the right of E, and C is sitting to the left of D. Who is sitting in the fourth position?
In a family of six members A, B, C, D, E, and F, there are two males and four females. A is a teacher and is married to B. C is the son of A. D is the daughter of B. E is the sister of C. Who is the father in the family?