Answer both of these questions please

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.

How did the scholars date the mosaic?

Select the correct answer. what are the two types of lighting? a. dark and light b. key and fill c. gobos and snoots d. incident and reflected e. polarizing and optical