Final answer:
The Theatre Guild, apart from 'Porgy and Bess', performed Broadway musicals, as they were part of the evolution of American theater from minstrel shows and vaudeville. The correct option is B.
Step-by-step explanation:
The Theatre Guild was known for its diverse range of performances, which included not just the famous 'Porgy and Bess' but also Broadway musicals.
The Guild was part of an American theater tradition that emerged from forms like minstrel shows and vaudeville, shaping the landscape of commercial theater with productions that captivated audiences with a blend of drama, music, and dance. Therefore, the correct answer is B) Broadway musicals.
Beyond purely musical productions, this period of theater also saw the performance of Shakespearean plays, which required a high degree of flexibility from actors as they could be performing classical works one moment and then entertaining audiences with a completely different genre in the next.
Moreover, the influence of different forms of performance such as ballet and opera on the development of musical theater underscores the interconnectivity and evolution of the theatrical arts during this time. The correct option is B.