A wrong answer that uses similar wording to the stimulus is a Shell Game answer. I did post about this in another context, and I hope that addresses your concerns: viewtopic.php?t=8801
I'll summarize here. A change in wording is not important; a change in meaning is important. So when the wording is similar, but not identical, look at what's changed. Does it mean the same? Is it implied by what's said? Or is the meaning changed by the different wording? Focus on meaning instead of specific wording. There are thousands of different ways to express the same idea, and thousands of tiny changes that can change the idea expressed.