题目选项分析

Less than 10 percent of the world's people, and of the participants in combat sports worldwide, are left-handed. However, a majority of top-level competitors in combat sports worldwide are left-handed.

Which of the following, if true, most helps to resolve the discrepancy presented in the passage?

【选项】Left-handedness is more common in primitive cultures with high rates of death by violence than in other primitive cultures.