PP遇到的問題

[hibettychen]

The investigations of many psychologists and anthropologists support the generalization of there being little that is significant difference in the underlying mental processes manifested by people from different cultures.

(a) of there being little that is a significant difference
(b) of there being little that is significantly different
(c) of little that is significantly different
(d) that there is little that is significantly different
(e) that there is little of significant differences

ans:D

解題：
1. 根據老莫技巧，generalization 應該使用"what" 問，所以abc刪除
2. a&b，being 不選

問題：
如何判斷d&e哪個正確？？標準答案d又是什麼樣的句型用法？

感謝解惑囉～