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To clarify...
- If options 1,2,3, and 4 are selected then D1 appears.
- If options 5 and 6 are selected then D2 appears.
- If options 1,2,3,4,5, and 6 are selected then D1, D2, and E appears
- If options 8 and 9 are selected then E appears.
- And it doesn't have to be exactly the selection, for example if 5,6, and 8 are selected then D2 still appears.
Is that correct?
Also, are you able to attach the XLSForm of what you have tried?