- PowerScore Staff
- Posts: 1080
- Joined: Jun 26, 2013
As you determined, the literal negation of answer choice (A) would be: "none of the crows that shrieked at and dive-bombed people wearing the masks were not among the crows that had been trapped." But careful with how you interpret the meaning of that statement because it contains a confusing double negative!
Your interpretation was that this said that none of the dive-bombing crows were trapped. But the negation actually says that none of the dive-bombing crows were NOT trapped. That means that all of the dive-bombing crows were trapped. If all of the dive-bombing crows were the ones that had previously been trapped, that would attack the argument that crows pass on information to other crows.
When a negation creates a double negative like we have here, you have to be really careful with how you interpret it because those double negatives are definitely tricky!
Hope this helps!