Question

Read the statement from Martin Luther King Jr.'s "The American Dream" speech.

Through our scientific genius we have made of this world a neighborhood . . .

This statement is effective because it

disproves an opposing claim.
repeats important words.
appeals to reason.
quotes a historical figure.

Answer 1

appeals to reason.

King uses a factual, logical point about scientific progress (making the world a "neighborhood") to support his argument, which is an appeal to logos.