Answer:
D. symphony
Explanation:
The organization of music into movements is a common feature of symphonies. Symphonies are typically large-scale orchestral works that consist of several movements, each with its own distinctive character and musical themes. The fact that Simon sees the piece is organized into four movements strongly suggests that he will be hearing a symphony at the concert. Rondo, binary, and ternary are musical forms used in smaller works, such as sonatas or dances, but not typically in symphonies.