听力原文： O'Hare Airport and Hartsfield-Jackson International Airport in Atlanta, Georgia

each claims to be the world's busiest airport. O'Hare may be the world's busiest airport. Or it may be only the second busiest. But everything about it is big.

The Federal Aviation Administration says more than nine hundred thirty thousand flights traveled through O'Hare last year. During that time, more than sixty-nine million passengers passed through O'Hare.

Most of these people were waiting for connecting flights. As they waited, they could shop at many airport stores. They could eat at airport cafes. They could exercise at a health club or do office work in a business-support center. They could take their children to a flight museum or visit the airport's religious center.

The huge O'Hare Airport of today is very different from its beginning. It started as a military air base and factory in the nineteen forties. The center produced planes for World War Ⅱ. Later, the airport was named for Navy pilot Edward O'Hare. He was killed in an action during the war after being honored with medals for bravery.

Big as O'Hare airport is today, however, it is not big enough. Too many airplanes crowd the runways where they take off and land. Delays and cancellations interfere with air traffic across the country. Officials say sixty-five percent of the flights at O'Hare were delayed during the first seven months of this year. This was the worst record among the nation's major airports.

To improve the situation, the governor of Illinois signed the O'Hare Modernization Act last year. The Act calls for building another runway. Existing runways would be moved and extended. More buildings are planned. The project will cost more than six-and-one-half-thousand-million dollars. When all that is completed in the next eight years, busy O'Hare Airport can get even busier.

Last year, how many flights traveled through O' Hare according to the Federal Aviation Administration？

A．930,000.

B．970,000.

C．913,000.

D．914,000.