The answer is B.)Vulnerable nobility trying to protect its privileges. on Edgenu!ty it is B
The Golden Age. Generally speaking, historians and technicians refer to the time between post WWI and the Great Depression as the "Golden Age" of piano building, because by and large, many people had come to the conclusion that the design and general conception of the instrument was 'complete', and that there was very little room for further improvements.
Hope this is right:)
The answer is the ottoman Empire.