[Options table]

1 Option1

2 Option2

8 None

9 NotKnown

[Answers table]

Student Answer

100 1

100 2

101 1

101 9

Student 100 answers are valid.

Student 101 answers are not valid because they break rule number3

Hi Eirikur,

No, I don't want to hard code it.  Maybe my question wasn't clear. I re-wrote it slightly different.

Thank you.