Send conditional email when other conditions are not met

Hi, we are creating a quiz. Based on their responses, they will either be an exception 1, and exception 2, or everyone else. We basically need three different emails sent out, to each group. I understand how to set up conditions, but it is complex to figure out how to set up a condition that takes in "everyone else".

Example:

If they answer "A" to question 1, and "C" to question 2: they receive email ABC
If they answer "B" to question 1 and "B" to question 3: the receive email XYZ
Everyone else needs to receive email LMN

That 3rd step is where we are running into difficulty.
Any suggestions?

The best way I can think of to do this would be to set up an additional field that is conditionally updated whenever the first two conditions you described are met.  Then your condition to send the third email would be based on whether or not that field is filled.

If question 1 is equal to A and Question 2 is equal to C insert whatever into new field
If question 1 is equal to B and Question 2 is equal to B insert whatever into new field
If new field is filled is not filled send email 3

This would essentially check to see if either of the first two conditions are met and then send the email if they are not.