Which of these pairs of organisms are most clearly related

a. aimophila aestivalis and passerella iliaca
b. junco hyemalis and clangula hyemails
c. mergus serrator and mergus merganser
d. somateria fischeri and olor columbianus

hello! if you would like i could share a research essay i did a month or two ago!

producers: apple trees, potatoes, carrots, grains, acorns, cabbage, grass, corn, lettuce

consumers: deer, mice, rabbits, chickens, squirrels, horses, worms, cows

predators: eagles, frogs, wolves, owls

which