Question: By whom was the phonautograms patented?
Answer: The phonautograph, patented by Leon Scott in 1857, used a vibrating diaphragm and stylus to graphically record sound waves as tracings on sheets of paper, purely for visual analysis and without any intent of playing them back.
A single-select problem: Is the question answered in a satisfactory fashion?

Options:
(a). yes
(b). no
(a).