Answer:For example, when you get those weird chewy caramel things on Halloween; given out of kindness but really no good. I'm thinking of something that is a "false gift", almost like the inverse of a blessing in disguise (which this thread discusses, but none of those are what I'm thinking of).
The intentionality of the giver is not so important as the properties of the thing itself: it is supposed to be good, but really isn't.
Explanation:
I believe the correct answer is B. The modifier "wearing a blue dress" is placed far from the noun which is supposed to modify - Stacey. Such as it is, it could easily be attributed to another noun, the stage. It would seem that the stage was wearing a blue dress, rather than Stacey. This is easily fixable with a comma between "stage" and "wearing".
The C and D sentences are also a little bit awkward, but they don't contain a misplaced modifier.
It would be simple. The past word of stand would be stood.