Before 1860,the development of machine tools by the United States government resulted in the

Question

Quizplus · Accepted Answer

The question states that the development of machine tools by the United States government resulted in something, and the options list three machine tools: turret lathe, universal milling machine, and precision grinder. Therefore, the best choice is D, as it includes all three machine tools mentioned in the question.

Before 1860,the Development of Machine Tools by the United States