Ethics Vignettes - 2 or 3?

Is the Ethics weight fixed at 10% (2 vignettes) or can it also be 3 vignettes?

Or are a couple of Ethics questions slipped into vignettes of other topics?

it can be up to three and no they won’t slip in random ethics questions in say for instance an FI vignette.

It’s 2-3 cases for ethics