Final answer:
Berry Gordy might not have allowed Florence Ballard to sing more to maintain a consistent image for the Supremes, with Diana Ross as the lead, ensuring group cohesiveness and commercial success.
Step-by-step explanation:
The question refers to Berry Gordy, the founder of Motown Records, and his management of The Supremes, particularly the dynamic between the group members. Although there isn't a specific incident mentioned regarding Florence Ballard being forbidden to sing one song per show, the situation speaks to the broader management practices of Berry Gordy. His goal was to maintain the success of The Supremes as a pop music group, which often included making decisions to ensure a consistent and marketable image. Florence Ballard, one of the original members of The Supremes, faced personal and professional challenges which, coupled with Gordy's management choices, may have led to her not taking a more prominent vocal role in performances. Gordy may have believed that focusing on Diana Ross as the lead singer would create a more stable and recognizable brand for the group, thereby preserving group cohesiveness and commercial success.