Final answer:
At the age of 15, Martin Luther King Jr. began his college education at Morehouse College, an HBCU, in 1944 due to a wartime policy allowing high school juniors to be admitted early.
Step-by-step explanation:
Martin Luther King Jr. began his college education at an exceptionally young age. At the age of 15, King was admitted to Morehouse College in 1944, where he studied until 1948. His early entrance into college was due to a wartime measure that allowed high school juniors who passed an entrance exam to be admitted in an effort to boost enrollment. King's choice to attend Morehouse, an HBCU (Historically Black Colleges and Universities), was influenced by the college's reputation and its significance within the African-American community. It was during his college years that King honed his skills in public speaking and developed his passion for racial equality, which later influenced his leadership in the civil rights movement.