Although Gluck is perhaps best remembered for his mid-eighteenth-century operatic reforms, other composers who also tried to reform opera at the same time were?

a) Johann Adolph Hasse and Baldassare Galuppi
b) Niccolò Piccinni and François-Joseph Gossec
c) Domenico Cimarosa and Antonio Salieri
d) Niccolò Jommelli and Tomasso Traetta

d