|Question 19Verbal

Source Texts

Text
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?
species
A
species;
B
species:
C
species,
D