阅读理解。阅读下列短文, 从给的四个选项 (a、b、c和d) 中, 选出最佳选项。
english around the world
today，nearly 350 million people across every continent use the english vocabulary as a mother tongue.three quarters of the world's mails and letters are in english.so are more than half the world's technical and scientific periodicals(期刊)—it is the language of technology from silicon valley(硅谷) to shanghai.
