Answer:
Patrons
Step-by-step explanation:
The important group that arrived during the Baroque Era and encouraged composers to make music that large crowds would enjoy was the patrons.
During the Baroque period, wealthy patrons, such as aristocrats and the church, provided financial support for composers and musicians. They often commissioned works and provided funding for performances. In return, the patrons expected music that would entertain and impress their guests and congregations. This led to the development of grand and ornate musical styles, such as opera and the concerto grosso, which were designed to showcase the virtuosity of the performers and dazzle the audience.
Therefore, the correct answer is: Patrons.