n Steps to Advancing College Redung Which sentence best expresses the main idea of paragraph 7? A. Happy Chandler became baseball commissioner in 1944. B. Black soldiers fought for the United States during World War II. C. A commissioner of baseball who was opposed to integration died 1944. tu had become more open to integrating baseball. n Steps to Advancing College Redung Which sentence best expresses the main idea of paragraph 7? A. Happy Chandler became baseball commissioner in 1944. B. Black soldiers fought for the United States during World War II. C. A commissioner of baseball who was opposed to integration died 1944. tu had become more open to integrating baseball