According to the passage, where did the fast food originate?
(A) K-marts and Wal-marts.
(B) Southern California.
(C) A corner in a house.
(D) A factory house.

Over the last three decades, fast food has infiltrated（使）潛入 every nook角落；隱蔽處 and cranny處處，到處 of American society.

An industry that began with a handful of modest不大 hot dog and hamburger stands in southern California has spread to every corner of the nation, selling a broad寬闊 range of foods wherever paying customers may be found.

Fast food is now served at restaurants and drive-throughs, at stadiums體育場, airports, zoos, high schools, elementary schools, and universities, on cruise大型遊輪 ships, trains, and airplanes, at K-Marts, Wal-Marts, gas stations, and even at hospital cafeterias.

In 1970, Americans spent about $6 billion on fast food; in 2001, they spent more than $110 billion. Americans now spend more money on fast food than on higher education, personal computers, computer software, or new cars. They spend more on fast food than on movies, books, magazines, newspapers, videos, and recorded music－combined.

Pull open the glass door, feel the rush of cool air, walk in, get on line, study the backlit（尤指為了製造特殊效果）從背後照亮 color photographs above the counter櫃枱, （廚房）操作枱, place your order, hand over a few dollars, watch teenagers in uniforms pushing various buttons, and moments later take hold of a plastic tray托盤 full of food wrapped（用紙、布或其他材料）包，裹 in colored paper and cardboard.

The whole experience of buying fast food has become so routine, so thoroughly unexceptional平常的，普通 and mundane世俗的；單調, that it is now taken for granted給予, like brushing your teeth or stopping for a red light. It has become a social custom as American as a small, rectangular長方形的；矩形, hand-held, frozen, and reheated再熱；將…重新加熱 apple pie.