Answer:
J) Fats Waller
Explanation:
Hi, Fats Weller was an american pianist and composer ( also organist, violinist, singer, and entertainer).
His mentor was James P. Johnson, who offered him piano instruction free of charge when Fats Weller was a 15 years old kid.
“Ain’t Misbehavin’ was one of his most well known compositions, and "Handful of keys" is an album of his best live performances released in 1957.