Answer:
Among the options given on the question the correct answer is option C.
Ethos and pathos.
Explanation: The given lines on the question are from the great speech of Martin Luther King Jr "I have a dream" which was given on August 28,1963 during the March to Washington for jobs and equality.
On the given lines of question, Martin Luther used ethos and pathos to appeal the audience . Ethos is a type of argument when the speaker use his belief or ideology to make his speech creditable to the audience.
On the other hand, pathos is a type of argument when the speaker use the emotional words and power to appeal the audience through his speech.
When, Martin Luther said,""I say to you today, my friends, so even though we face the difficulties of today and tomorrow, I still have a dream. It is a dream deeply rooted in the American dream" it is the use of pathos. Because here he used the emotion of him.
Moreover, when he said," I have a dream that one day this nation will rise up and live out the true meaning of its creed: 'We hold these truths to be self-evident, that all men are created equal".Here he used the ethos of his own. Because here described his belief.
There, the answer of the question is Ethos and pathos.