Can Option A deselect Option D?

[Homer S]

Is it possible to remove options based on either tags or other options?

The case is

When Option A is selected Tag One is assigned
When Option B is selected Tag Two is assigned
Options A & B are Exclusion 11 (so one is required, the other is disabled)

Option C is auto and live with Tag One and not Tag Two
Option D is user selectable and live with Tag One and not Tag Two

If A and D are selected and the user deselects A to select B, Option C disappears but Option D remains and flags a validation error.

I'd like deselecting A to remove the selection of Option D.

Homer