Final answer:
Charlie Christian was championed by fellow artist Mary Lou Williams, which is true. She recognized his talent and helped him gain national recognition by recommending him to Benny Goodman.
Step-by-step explanation:
The statement that Charlie Christian was initially championed by fellow artist Mary Lou Williams is true. Charlie Christian was a pioneering jazz guitarist whose innovations in the late 1930s and early 1940s contributed significantly to the bebop movement. Mary Lou Williams, a renowned jazz pianist, and composer played a pivotal role in his career, recognizing his talent and advocating for him. This included recommending Christian to Benny Goodman, which consequently led to Christian's national acclaim. Discussions regarding the influence of Charlie Christian in jazz history or Mary Lou Williams' pivotal role in advocating for emerging artists are crucial, revealing the interconnectedness of musicians in jazz's development.