The most likely reason king uses allusions in this part of his speech is to
a. share his knowledge of american geography.
b. compare northern and southern destinations.
c. remind listeners about small-town accountability.
d. encourage listeners to envision freedom everywhere.

Martin Luther Kings used allusions to Encourage listeners to envision freedom everywhere.

Option D

Explanation:

This popular speech by Martin Luther King is known as I Have A Dream. He delivered this speech during 1963 at Lincoln's Memorial. He visioned freedom and jobs for black people.

In this speech, he used allusions and metaphors to explain the status of Blacks in society. They need equality, civil rights and freedom like other citizens in society.  

He mentioned that he knows about the violence and the effects of the Civil war.

So he intended to protest peacefully for the same cause. Because black people faced struggles and remained as slaves.

He also mentioned that from this day, we live together as God's children not as Blacks, Jews, whites, etc.

i believe the answer is: b. mr. head had a long, tube-like face with a rounded open jaw and a short depressed nose.

this is because in the un-revised sentence it said that mr. heads face was long and tube-like, and he had a rounded open jaw. this is not a very grammatically correct because of how it seems to drag on with the and, replaced with, with, makes it sound more fluent in the description.

the answer is b-$11,337.