Data Sufficiency

There are seven coconut trees in Baghban's garden. Baghban has named his trees as Amitabh, Hrithik, Chunky, Dilip, Fardeen, Feroz and Govinda. The trees are standing in increasing order of their heights, which is not the same as the above order of names. It is known that their heights (in feet) are seven consecutive integral values between 1 and 10 (both inclusive). Further, following clues are given about their positions.

I. Amitabh is 3 ft taller than Dilip.
II. Hrithik stands in the middle of the row of seven trees.
III. The difference in the heights of Feroz and Hrithik, Feroz being shorter, is same as the difference
in the heights of Chunky and Dilip, Chunky being taller.
IV. Feroz is shorter than Govinda.

Difference in heights of Fardeen and Hrithik is same as the difference between the heights of Dilip and which tree?

a) Amitabh
b) Hrithik
c) Chunky
d) Fardeen
e) None of these