Question 4
For "Schubert, Franz, 1797-1828. The Trout (Die Forelle): Quintet in A major for piano and strings, op. 114," you chose (a.) "Quintets, piano, violin, viola, violoncello, double bass D. 667, A major."
That is correct! Note: "D. 667" refers to the "Deutsch" catalog number that identifies this quintet in Otto Erich Deutsch's catalog of Schubert's works, Franz Schubert: thematisches Verzeichnis seiner Werke in chronologischer Folge (Barenreiter, 1978). The opus numbers that appeared on many early Schubert publications are unreliable and are not used in uniform titles.

