The Entomologist Terry Erwin Estimated That There Were 30 Million

The entomologist Terry Erwin estimated that there were 30 million species of insects based on studies he conducted of beetles that fell from 19 trees treated with insecticide.Later studies, however showed that his estimate was probably too high.Which statement about the Erwin study is false?

A) It made assumptions about the number of species of host trees.
B) It made assumptions about the proportion of beetles that specialize on a specific tree species.
C) It made assumptions about the relative proportion of beetles to other insect groups.
D) It included chelicerates (spiders and mites) , which was the reason for the overestimation.
E) It involved the collection of many previously undescribed beetle species.