Read the following sentence and answer the question.

Martin Luther King Jr. Day also known as civil rights day, comemorates the birth of Martin Luther King, Jr.

Which of the following sentences provides the most accurate revision of the above sentence?

Martin Luther King, Jr. Day, also known as civil rights day, comemorates the birth of Martin Luther King, Jr.
Martin Luther King Jr Day also known as civil rights day, comemorates the birth of Martin Luther King, Jr.
Martin Luther King, Jr. Day also known as Civil Rights Day, commemorates the birth of Martin Luther King, Jr.
Martin Luther King, Jr. Day, also known as Civil Rights Day, commemorates the birth of Martin Luther King, Jr.
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