In a school auditorium, fifteen chairs are arranged in five rows − along the East-West direction and three columns − along the North-South direction. Ten students − A through J − each of who belongs to either class 8, 9 or 10, are sitting in the chairs such that all the students are facing North and all students of the same class sit in the same column. Further it is known that:

(i) A is sitting in the first row of the column in which I is sitting in the second row.

(ii) B is sitting in the third row and no one is sitting to the left of B.

(iii) D and H, who belong to the same class, are sitting to the left of A.

(iv) E, a student of a higher class than C, is sitting to the left of C, while B, C and E are sitting in the same row.

(v) There are three unoccupied chairs in the column in which E is sitting and two chairs are unoccupied in the column in which B is sitting.

(vi) There is exactly one student sitting between F and H and all three of them are sitting in the same row.

(vii) All students of class 9 are sitting behind I.

(viii) D is one class senior to I.