Direction: The question given below consists of three statements numbered I, II, and III given below it. You have to decide whether the data provided in the statements are sufficient to answer the question and mark your answer accordingly.

Nine boxes A, B, C, D, E, F, G, H and I are kept on nine different shelves in a shop. The bottommost shelf is numbered 1 and the topmost shelf is numbered 9.

I. Box E is kept four shelves above C and on an even-numbered shelf. Two boxes are kept between E and D, which is not kept on the third shelf. I is kept two shelves below D.

II. G is kept immediately below I, which is kept on an odd-numbered shelf. B is kept three shelves above F, which is kept above fourth shelf. A is not kept below H.

III. A is kept above C, which is kept on an even-numbered shelf. G is kept below A but above H. B is not kept below E.

How many boxes are kept between A and H?