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 would fit together with all other parts, and 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 businesses?

A. Parts made by machines could be made more cheaply. Customers had to wait longer to obtain the new parts made by machines.

B. Costumers had to wait longer to obtain the new parts made by machines

C. Machines could quickly manufacture parts people once made.

D. Businesses' costs could increase to pay for the machinery.​

C. Machines could quickly manufacture parts people once made.

Explanation:

The excerpt focuses on the fact that a machine is doing tasks previously done by humans, and the fact that it is doing it quicker than before.

There's nothing about what D, B or A stated directly in the text.

the correct answer option is: weapons.

explanation:

tensions rose as the two opposing superpowers competed for 'weapons'.

referring to the cold war (1945-1991), the two superpowers, usa and ussr, experienced a phase of struggle and conflict with each other. these two superpowers considered each other as a threat to their survival and thus opted for policies to strengthen their positions.

the two superpowers never went to war with each other directly but competed for weapons to preserve their positions.

answer

the speaker of ,’i want politician to make more of an effort for lgbt rights’, will be served well by joining an interest group.

explanation

an interest group is one that aims at influencing public policy on reasons derived by a common interest .in this case, lgbt rights are rights for the gay society which is a special group of individuals with specific interest concerning their relationship with other individuals. hope this !