A professor hires two aides, assigning them the tasks of reading student papers and of typing lecture notes on a computer. One of the aides, Ben, can read 1 page of a student paper per minute or type 50 words of lecture notes per minute, and the other aide, Ann, can read 3 pages of a student paper per minute or type 60 words of lecture notes per minute.

Ann has a comparative advantage in reading student papers, and Ben has a comparative advantage in typing lecture notes.

answer; ok in rural area most people depend on private transportation(cars),pick up truck,donkey and buggy: ),and urban people can walk or ride public transportation,bus,train cab,uber.

the answer would be a)henry grady because he came up with the term "new south"