Whitney wanted to speed up the making of guns by having machines manufacture each part. All machine made parts would be alike. For example, one trigger would be identical to another identical parts with fit together with all other parts. At the end gunsmiths would not have to build each gun from scratch. Interchangeable parts would save time and money. Use the passage to answer the question based on this excerpt from the text. In what way would interchangeable parts best help business? Parts made by machines could be made more cheaply? Customers had to wait longer to obtain the new parts made by machines? Machines could quickly manufacture parts. People wants made? Businesses cost would increase to pay for the machinery?

The correct answer is: Parts made by machines could be made more cheaply. Interchangeable parts would allow for mass production, which would reduce the overall cost of manufacturing each individual part.