Answer:
King's choice of words allows for a humble tone, which makes the audience see him as peaceful, friendly and gentle.
Step-by-step explanation:
This question is about "Letter from Birmingham Jail".
In lines 265-267, we can see that King uses a standard language, but very humble and apologetic, with the use of popular words and is easily understandable. This creates a very beneficial effect on King, because he shows him as someone who is not interested in appearing elite and academic, but he shows him as an ordinary, friendly, suffering and meek man.
This kind of diction comes to King's supporters who see him as a great example and can even touch those who disapprove of him by showing that King is being polite and peaceful in his claims.