Seven persons A, B, Y, Z, E, F and G are sitting in a row facing north but not necessarily in the same order. Which of the following persons sit fourth to the left of Y?
I. Y sits second to the right of
A. Two persons sit between A and F. E sits second to the left of F. Only one person sits between G and
B. Z sits left of E.
II. Three persons sit between G and E. Either G or E sits at one of the extreme end. A sits left of F. B and A are immediate neighbours. Y sits right of E.