<u><em>C. Ethos and pathos.</em></u>
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<u><em>Explanation:</em></u>
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<u><em>We can see pathos in the first sentence, especially in the poetic picture of "dark and desolate valley of segregation". This hyperbolic picture amplifies phatos. Ethos is present in cheering up people "Now is the time to lift our nation". In addition, an ethos we can find an idea of justice for everyone.</em></u>
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One barrier in communication is being deaf (hard of hearing). This can cause many difficulties in communication due to people not hearing you. Although to overcome this barrier we can learn ASL (American sign language) to speak to each other in another language using our hands.
This is just an example but the main focus is dead and ASL to overcome hope this helps :)
Probably depressing and gloomy