A、By sound. B、By a computer program. C、By video. D、By LEDs. B

Leo Villareal is known for making art that inventively combines light and computer programming.(2)About three years ago, the National Gallery of Art asked him to design a light sculpture for the underground passage connecting the museum’s two buildings. His work, called "Multiverse", opened in November. He transformed the wall and ceiling of the sixty-meter long area into a surface made up of thousands of blinking lights. These very small lights are called light-emitting diodes, or LEDs. Visiting the tunnel is like entering a magical and mysterious world. The lights surrounding you turn on and off in a complex series of patterns. Sometimes all the lights seem to be on. Then they fade into a new formation. The lights look like dancing stars in a night sky. Or they look like expanding moons. Or like cell organisms dividing into new forms. Visitors walk through the tunnel, or they stand on a moving electric walkway to enjoy the light display. It is also fun to watch other people’s reactions to the art. Some people smile with praise. Others stop in their path out of total wonder.(3)Leo Villareal designed a computer program that controls the lights. He first began exploring light, sound and video while he was studying theater design and sculpture at Yale University in Connecticut. He later continued his studies in new media and computing in art school at New York University.