Requiring learners to select all hotspots for an answer to be correct

You need a pick one, and some triggers. Each correct answer is covered by a filled object that has no outline, and is set to very high transparency. Triggers select the correct answer for the Pick One interaction. To keep the hand from showing over the correct spots, the whole image is covered with a filled, high transparency object under the correct answers. That gives your learners a hand anywhere on the image, (if it has a trigger attached to it.)
For easy identification, I have filled the correct spots in red, and a number indicating the correct order. Everything is reset if the slide is visited again.