Answer:
Martin Luther King used this allusion to B) emphasize the morality of his cause.
Step-by-step explanation:
To understand this we need to analyze both elements. First of all this allusion communicates that paul the apostle left his home to communicate the gospel of Jesus Christ to the extents of the empire so men could be saved. Second, Martin Luther King left his comfort zone to deliver a message of freedom and liberty to inform everyone about liberty as a human right.