What do the lines reveal about the Traveler?

What point is the author trying to make by comparing the travel times of the first transcontinental railroad and the first transcontinental flight?

Which sentence contains a correctly used participial phrase? a) camping by the lakeside, the cries of geese kept me awake. b) after brushing on another stroke of fiery crimson, the canvas looked complete. c) peering through the rain spattered window, the scenery appeared lush and verdant. d) kicking the ball into the upper left hand corner of the goal, the striker scored the winning goal.

What is one example of a word/phrase choice that may affect how people think about a particular social problem?