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Answer: b
Explanation: The commonly accepted papers to machine design were introduced in the year 1959. It was devised by the author Heroz et al.
Computer-aided design (CAD) was introduced in the 1960s. The origins of CAD can be traced back to the early work of individuals such as Ivan Sutherland, who created the sketchpad software in 1963, which is often considered one of the first CAD programs. Sutherland is often recognized as a pioneer in the field.