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Verbal·Standard English Conventions·Boundaries
medium
In their 2019 study of butterfly diversity at Rupa Lake in Nepal, researcher Bandana Subedi and her colleagues counted 1,535 butterflies from 138 different        including one specimen of the Doleschallia bisaltide, a very rare butterfly known among lepidopterists as the autumn leaf.
Which choice completes the text so that it conforms to the conventions of Standard English?
A
species
B
species;
C
species:
D
species,