Time-study analysis
Computer-controlled robotics,
GPS device,
assembly lines
"<span>A. It amounted to an informal declaration of Cold War" would be the best option, but it was not even remotely formal--in that it simply said that the US would come to the aid of any countries in danger of becoming communist. </span>
I would go with C cause its the only one that would go along the lines of buying or selling
Here is a example
The new United States government was thus free to acquire Native American lands by treaty or force. Resistance from the tribes stopped the encroachment of settlers, at least for a while. After the Revolutionary War, the United States maintained the British policy of treaty-making with the Native American tribes
