And we haven't heard anything like that so we have no way to contradict it. So B was our correct answer. It contradicted a mathematical inference we could pull out of that comparison. Again, the two patterns for correct answers are that they will contradict a conditional statement that gave us, or it will contradict a possible inference we could have made. So when you read a must be false paragraph, you should still use your normal inference brain to look for what sort of possible things you could infer by combining two or more ideas. And remember that must be false doesn't mean which answer is making a bad unsupported inference.