1. Option: 3

2. Option: 4

3. Option: 3

4. Option: 4

**Explanation**:

Total number of Biscuits = 5

Total number of Candies = 3

So Total number of Savouries = 12 – 5 – 3 = 4

From point iii) and iv) it is clear that D, E, F and K are 4 savouries and are kept in shelves numbered 13,14, 15 and 16 as there is no empty shelf between items of the same type.

From point II), V and VII) I, J and L are of the same type L being in the least numbered shelf among 3.

As from point VI,) C is candy so I, J and L must be Biscuits as there are only 3 candies.

From point V) H is not Biscuits so it must be a candy thus A and B must be Biscuits.

Now Item can be placed as given below.

Case 1) when all biscuits are placed after candies.

Case 2) When all candies are placed after biscuits.

Total 8 cases are possible.

All questions can be answered now.

1. There are two empty shelves between the biscuits and the candies.

2. All candies are kept before biscuits.

3. All biscuits are kept before candies.

4. There are at least four shelves between items B and C