Which finding, if true, would most directly support the researchers' hypothesis?
A. A The LINE transposon in O Vulgaris and O. bimaculoides genomes is active in an octopus brain structure that functions similarly to the human hippocampus.
B. The human genome contains multiple transposons from the LINE family that are all primarily active in the hippocampus.
C. A consistent number of copies of LINE transposons is present across the genomes of most octopus species, with few known corruptions.
D. O. vulgaris and O. bimaculoides have smaller brains than humans do relative to body size, but their genomes contain sequences from a wider variety of transposon families.