In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.

Question: What type of music was Rosa Papier known for? Passage:Born in what is now Opava in Silesia, Weidt was the daughter of composer and Kapellmeister Heinrich Weidt, who was one of her first teachers, along with Rosa Papier. For most of her career she was on the roster of the Vienna State Opera, beginning in 1903 and continuing until 1926. She first succeeded Sophie Sedlmair, who was retiring, and soon began sharing major Wagner roles with Anna Bahr-Mildenburg. She also became known for her portrayal of Leonore in Fidelio, and she created for Vienna the Marschallin in Der Rosenkavalier. For Milan she was the first Kundry. Between 1908 and 1910 she appeared in Munich. During the 191011 season Weidt was on the roster of the Metropolitan Opera, singing Brunnhilde in both Die Walkure and Siegfried and Elisabeth in Tannhauser. In 1912 she was singing in Buenos Aires. She won praise from Leos Janacek for her portrayal of Kostelnicka in Jenufa at its Vienna premiere in 1918. The following year she created the role of the Nurse in Die Frau ohne Schatten for the same company. Weidt died in Vienna.
Links: a. Rosa Papier b. Die Frau ohne Schatten c. Leos Janacek d. Jenufa
a