I want to know the answer to the following question:
Who argued in 2003 that all clades are by definition monophyletic groups?
All the background I'm provided with is that "Rachel Caspari (2003) have argued that clades are by definition monophyletic groups (a taxon that includes all descendants of a given ancestor) and since no groups currently regarded as races are monophyletic, none of those groups can be clades.". Is that enough to answer the question?
Answer: yes