Which underline noun is a proper noun and should be capitalized? the invention of the elevator by an american made skyscrapers possible?

Which is not among the style choices a writer would use, if he or she is trying to establish a formal writing style/

Which sentence uses all its nominative case pronouns correctly? a we live on the same street b them and rachel are good skaters. c the redskins fans in the family are fred and me d have joanne and him played tennis together before?

Asap! what statement about congressional representatives is true? -they focus on what is best for government -they focus on constituents and what they need -they are members of the upper house of congress -they don't need to focus on reelection