Who is a notable Kappa Alpha Psi member recognized for his impact in civil rights?

The most notable member of Kappa Alpha Psi recognized for his impact in civil rights from the options provided is Al Sharpton. He has been a prominent civil rights activist, minister, and political figure who has played a significant role in advocating for social justice and equality. Throughout his career, Sharpton has organized numerous protests and has been a vocal advocate on issues affecting African Americans and other marginalized communities. His leadership and efforts in the civil rights movement and public speaking engagements have made a lasting impact.

The other individuals, while also significant figures in their own right, are not members of Kappa Alpha Psi. Martin Luther King Jr. is celebrated for his monumental contributions to the civil rights movement but was not a member. John D. Rockefeller IV is known for his political career and philanthropic efforts but is not recognized for civil rights work specifically nor is he affiliated with Kappa Alpha Psi. Rosa Parks is renowned for her pivotal role in the Montgomery Bus Boycott and is an iconic figure in civil rights history, but she, too, is not a member of the fraternity. Therefore, Al Sharpton stands out as the correct choice.