OK, this is more my fault than Kevin's.
To start, "is" changed to "are" and "select all that apply" added. I should have done that.
The engine is built to show radio buttons if one answer is required, checkboxes if 2 or more are correct. That's how the MS tests work, but it also means there's a trick. If I forget the "select all the apply", you have to know that at least 2 answers are required. I'm not sure if I'd always like to have checkboxes, though that would remove the confusion from questions.
I also can't an an either/or for partial credit. Enhancement is needed here, but I'm not sure how I can do this without confusing myself more often than not:w00t:
I thought it was a good question, but I didn't read into it like a few of you. I also see it from a different perspective, so apologies for any confusion. The intent from me, and I'm guessing Kevin, was not to confuse, but show that SAMPLE isn't necessarily accurate.