General Studies · Data Sufficiency

The question given below consists of three statements numbered I, II, and III. Decide whether the data provided in the statements are sufficient to answer the question: 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?