Who Was Joseph Pulitzer and What Made Him Significant

Who was Joseph Pulitzer and what made him significant?

A) An investigative reporter who exposed the unhealthy conditions of the meat-packing industry
B) A circus showman who claimed that "He who is without a newspaper is cut off from his species"
C) The artist whose comic strip,"The Yellow Kid," gave its name to yellow journalism
D) A St.Louis newspaper publisher who built his sales base with sensational investigations