【正确答案】 B

【答案解析】[听力原文] 18-20
The Luce Foundation Center for American Art is not your typical museum. It's an open storage facility at the Smithsonian American Art Museum which houses 3,300 works of art, leaving little room for written information.
"All the interpretation has to be digital and we have a great deal of it," says Georgina Goodlander, who was tasked with finding a way to get around the space problem.
Her solution allows visitors to access information about the works and the 1,200 artists who created them at one of 10 computer stations located throughout the space.
"We have hundreds of videos, audio clips, additional photographs, all kinds of cool stuff," says Goodlander. "But the one downside of those is you have to walk away from the artwork and sit down at a kiosk, so you are no longer looking at the artwork anymore. "
An audio tour was the solution to that problem. Information on almost 200 works is accessible on cell phones or mp3 players provided by the museum.
"They will take out the device for a couple of hours and go on the audio tour," says Goodlander. "The cell phone is for more casual users I think. "
At the National Gallery of Art, visitors listen to the curator telling them about Leonardo da Vinci's portrait of Ginevra de'Benci.
Recorded tours have been part of the National Gallery since the 1960s, but digital technology gives visitors more freedom. They can borrow an mp3 player at no cost and choose which works they want to learn more about by punching in a code.