Which of the following is not in common between lumpers and splitters?​

A) ​Both represent perspectives about evolutionary relationships.
B) ​Both are approaches to naming fossils.
C) ​Both allow researchers to group fossil diversity.
D) ​Both allow researchers to acknowledge all biological diversity.

Lumpers and splitters both deal with how to classify and name fossils, focusing on evolutionary relationships and grouping fossil diversity. However, the key difference lies in their approach to acknowledging biological diversity. Lumpers tend to group organisms broadly, potentially overlooking some diversity, while splitters prefer a more detailed classification, acknowledging more of the biological diversity. Therefore, D is not in common between the two as splitters are more inclined to recognize and categorize all biological diversity, whereas lumpers might aggregate it under broader categories.