King’s purpose for including this sentence is C. to establish his professional credentials.
<h3>Who is Martin Luther King?</h3>
This refers to one of the Civil Rights leaders in America that led the non-violent approach to end racism and integrate equality.
Hence, we can see that from the complete text, the author talks about his academic qualifications and also shows that he is competent and should be listened to as a Civil Rights leader.
Read more about Martin Luther King here:
brainly.com/question/17746240
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<u>Amber </u><u>is </u><u>conducting</u><u> </u><u>research</u><u> </u><u>for </u><u>a </u><u>presentation</u><u> </u><u>about </u><u>the </u><u>first </u><u>perso</u><u>n </u><u>from </u><u>the </u><u>United </u><u>State </u><u>to </u><u>travel </u><u>to </u><u>space.</u>
Which source will most likely provide relevant information?

- A newspaper from last week.❌
- A travel magazine ❌
- An article about living in space❌
- An encyclopaedia✔️

I guess, That an encyclopaedia is the correct answer. As encyclopaedia can give a lot of more relevant information about the topic.
<h3>Hope it's helpful to you :)</h3>
Oh sorry but this isnt english so i cant help with this u shouldnt have clicked history