How did the american frontier shift westward?

In a group discussion, which of these is the best example of synthesis claims into a single conclusion?

The nineteenth century was an era of great inventions in the united states. look at the list of inventions below and order them from most to least important (in your opinion). then explain why you ranked the top three inventions as most important. 1834: refrigerator invented by jacob perkins 1837: morse code invented by samuel morse 1853: elevator invented by elisha graves otis 1873: typewriter invented by christopher latham sholes 1876: telephone invented by alexander graham bell 1877: gramophone invented by thomas edison 1879: light bulb invented by thomas edison 1886: dishwasher invented by josephine cochran

Choose the right phrase to complete the sentence. segregation in the united states in the late 1800s and early 1900s was supported by law alone. by custom alone. by both law and custom.