M: It is almost impossible to find a person between the ages of 85 and 90 who primarily uses the left hand.Q: Seventy...

For those confused about this question stem, I found it helpful to insert the answer choices at the end of M's argument, then used Q's response as a weakener. For instance: M: "It is almost impossible to find a person between the ages of 85 and 90 who primarily uses the left hand. (insert answer choice A) Therefore right-handedness confers a survival advantage." Q: "But, seventy to ninety years ago, however, children were punished for using their left hands to eat or to write and were forced to use their right hands." Try this strategy on similar question stems!