听力原文：Ten years ago a small boy fell off his bicycle because he wanted to look behind.

听力原文： Ten years ago a small boy fell off his bicycle because he wanted to look behind. This gave Billy Morgan, a British businessman, a new idea. He designed a bicycle helmet with a built-in minor.

Mr. Morgan launched the product six months ago, and it now has sales of 27,000 and sells in twelve countries from Korea to Finland. The target for the second year is for sales of nearly 1 million pounds.

But it wasn't easy for Mr. Morgan to become successful. He had problems when he tried to interest UK manufacturers in making the helmet. It cost Mr. Morgan 1 million pounds of his own money to develop the helmet for the mass market.

Mr. Morgan found a helmet-maker in France. He worked with French consultants to make the design better for mass production, and spent ￡ 450,000 on preparing the French plant to make the helmet.

Now he plans to do more research and development. He wants to manufacture other designs of rearview helmets for motorcycling, skiing and horse-riding.

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A．A product launch that didn't succeed.

B．A new idea that became a commercial success.

C．A manufacturing problem.

D．A new design of the bicycle helmet.