How Did Ernst Mayr, the Scientist from the New Guinea

Multiple Choice

How did Ernst Mayr, the scientist from the New Guinea study on birds of paradise, know that the natives understood speciation?

A) because they have a museum with many catalogued specimens
B) because they have individual names for many of the species
C) because they have many biologists in New Guinea that studied the speciation
D) because they helped to achieve the speciation