I would say the Internet. The Internet has helped to connect people digitally around the world. It provides quick sources of entertainment and information.
If we want to know what's airing at the nearest cinema we can just look it up. If we want letters to be sent quickly that can happen in a second.
The answer is B because the allies had the US which created the War Industries Board (WIB) which overseed production of military supplies.
<span> Roger Sherman Alexander Hamilton Gouverneur </span>
Tariff is the correct answer