Which quotation best describes the connection between Emile Berliner's gramophone in 1887 and the technology in 1890?

Question

A.
"In that year, Thomas Edison invented a device known as the phonograph that recorded and played back sounds that were made onto a piece of tinfoil around a cylinder."
B.
"These discs were called records and were originally coated in shellac, which was later replaced by vinyl."
C.
"In 1887, Emile Berliner developed the gramophone, which relied on the use of flat discs."
D.
"Although the disc recordings coexisted with wax cylinder recordings for a period of time, by the 1920s, the wax cylinders were essentially obsolete."

Answer 1

C. "In 1887, Emile Berliner developed the gramophone, which relied on the use of flat discs."