Final answer:
The Seven visionary founders of Alpha Phi Alpha, known as the "Jewels", include George Biddle Kelley, who is the correct answer to the student's question.
Step-by-step explanation:
The Seven visionary founders of Alpha Phi Alpha Fraternity, often referred to as the "Jewels", are Henry Arthur Callis, Charles Henry Chapman, Eugene Kinckle Jones, George Biddle Kelley, Nathaniel Allison Murray, Robert Harold Ogle, and Vertner Woodson Tandy. These trailblazing individuals established the fraternity on December 4, 1906, at Cornell University, marking it as the first intercollegiate Greek-letter fraternity established for African American men. Among them, George Biddle Kelley is the correct answer mentioned in the options provided by the student. The other notable personalities like Martin Luther King Jr., Langston Hughes, and Jackie Robinson were not among the founders, but they have made significant contributions to African American history and the civil rights movement.