Hello hello hellooo how are yo

Which statement is true with regard to beethoven? a. ludwig vin kochel catalogued more than six hundred of his compositions. b. he was the official composer for the powerful and rich eszterhazy family. c. he produced the best piano sonatas and the “ninth symphony” after losing his hearing. d. he wrote the well-known opera “the magic flute” during the last years of his life.

Match the instrument with its classification group: trumpet idiophone piano chordophone cowbell membranophone snare drum aerophone

What does it mean to have a bias (for example your bias of bts)?