The following question consists of an incomplete sentence or a sentence which is split into four parts. All the four parts are jumbled up and are named as P, Q, R, and S. These four parts are given in their proper order. Arrange the jumbled parts of the sentence and find out which of the four combinations from the given options will correctly complete the sentence.

Beethoven composed music in the transitional period __________ 18th-century techniques and sounds.

P: is characterized by traditional

Q: between the Classical and the Romantic eras,

R: periods. The first period, between 1794 and 1800

S: and his work has been divided into (roughly) three