There are six people A, B,C, D , E  and F who are to be seated on six chairs numbered 1 to 6, each facing north, with 1 being the chair lying on the extreme left and 6 on the extreme right. Some other information is also given regarding their seating arrangement. 

C is sitting to the right of A and E

B is sitting to the left of D

E is sitting immediately to the left of F

D is not sitting in any of the two rightmost positions. 

How many positions are possible for A

1. 2
2. 3
3. 4
4. 5

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Puzzle of the day: 154