It helped prevent Identity theft and it can help police identify you in troublesome situations.
Because they wanted slaves
C would be my best option. The African Slave trade was a very important factor in sugar production in the Caribbean
I believe it would be the spy system. During the war, some americans were for and against the war and independence. To keep in the know of what the british were planning, there was an elaborate spy system to spread information on the british troops where people acted as they were for british rule. :)
hope this helps!!
Answer:
-The telegraph helped people communicate with eachother
-The lightbulb helped light up homes and helped factory workers work longer and the telephone helped people communicate faster and easier.
