一道填空题求助，谢谢

For many adults, the adolescent years occupy (i)_____ place in the memory, which to some
degree is even quantifiable: give a grown adult a series of random prompts and cues, odds are he
or she will recall (ii)_____ number of memories from adolescence.
A. a peripheral D. a disproportionate
B. a privileged E. a modest
C. an arbitrary F. an uncertain

这道题很疑惑，有没有同学可以帮忙分析一下逻辑，谢谢，
答案选择bd,但是感觉前后不对应，因为前面已经提到了quantifiable，后面又说disproportionate，这样逻辑不是相反了吗