题目选项分析

Data collected on married couples in the U.S. show that couples who lived together before marriage tend to view their marriages as more passionate than those who did not live together. Based on this finding, a psychologist has suggested that couples who did not reside together before marriage are more likely to divorce than their peers who lived together.

The psychologist's conclusion depends on which of the following assumptions?

【选项】Couples who live together tend to be more serious about marriage and less likely to divorce.