An important reason to keep Native American languages alive for linguists is that A. These languages may have unusual linguistic features which tells us more about language and cognition
B. There is little linguistic diversity across Native American languages
C. These languages are very similar to Indo-European languages
D. Indigenous communities aren't interested in keeping their language alive, so linguists have to do that work.

Read these excerpts. lincoln's "gettysburg address." it is for us the living, rather, to be dedicated here to the unfinished work which they who fought here have thus far so nobly advanced. whitman's "o captain! my captain! ". exult, o shores, and ring, o bells! but i, with mournful tread, walk the deck my captain lies, fallen cold and dead. which rhetorical appeal do both excerpts use? logos: the use of logic to convince the audience pathos: the use of emotional appeals to affect the audience’s feelings brevity: writing or speaking that is short, brief, and to the point ethos: the use of authority to persuade the audience to act the right way