I am planning a research project on history of technology. Which question would be best to narrow down his topic?

How many computers are made each year?
What company makes the bestselling smartphone?
How will social media change in the next ten years?
Which events led to the creation of the internet?

In the conclusion of the radio broadcast war of the worlds, orson welles:

“we have had a little rain.” said the woman she looked out into a flood. hyperbole, understatement or neither

Which line in this excerpt from "the love song of j. alfred prufrock" by t. s. eliot uses synecdoche? shall i say, i have gone at dusk through narrow streets and watched the smoke that rises from the pipes of lonely men in shirt-sleeves, leaning out of windows? i should have been a pair of ragged claws scuttling across the floors of silent seas.