Question

it in the terms of st. thomas aquinas: an unjust law is a human law that is not rooted in eternal law natural law. any law that uplifts human personality is just.
why does king use this allusion?
to appeal to his critics sense of duty
to describe an historical precedent
to commemorate a famous leader
to encourage a consideration of ethics

Explanation:

El allusion a la ley eterna y natural de Santo Tomás de Aquino está relacionado con la ética. La idea de que una ley justa eleva la personalidad humana es un tema ético.

Answer:

to encourage a consideration of ethics