This is a sufficient assumption question, which means if the new assumption is added, the argument must be absolutely right, and only D can do this, D makes this argument absolutely right. C should be kicked out immediately, because it has "some", normally only correct in necessary assumption questions. A is wrong, because it cannot quarantee the righteousness of this argument either. -- by 会员 s_dUSA (2012/7/22 2:57:38)
Thanks so much! your reply gives me encouragement!
After rethinking the choice A, it might also be wrong because "the safer a driver one is" focused on the driver while the primary purpose of the bill was meant to be "concern for public safety".
Anyway, it will be really great if more of us share the good questions we meet and discuss them together. It adds to the whole long-lasting preparation so much fun. |