Standard Discrete Job with Options, Mutual Exclusive

Hi,

My business scenario to create BOM which should handle all below 4 scenarios.

1) May use the component of BOM item, if required.

2) Must use the component of BOM item, but any quantity

3) Must use atleast 1 component from subset of acceptible items of BOM item and any quantity.

4) May use any subset of parts & quantity from subset of acceptible items of BOM item.

BOM Item: A

                     B

                     C

                     D

                     E

                     F

                     G

                     H

                     I

1) we will use item B, if required.

2) C item must be used, but any quantity

3) D, E & F same group of items. I must use ONLY one item from among D, E, & F and any quantity.