听力原文：As you know, Wellington Corporation is a global company so we sell our products a

ll over the world. Our best-selling international product is our headphones. We do sell a lot of calculators, stereos, and cell phones, but our headphones really are the star product. Currently, we have sales in thirty-six countries, but we hope to increase that to fifty during the next three years. It's taken a few years to get sales in thirty-six countries, but we're confident that with hard work we won't have too much trouble increasing that number.

What is learned about Wellington Corporation？

A．It has sales in 36 countries.

B．It increased its sales by 18 percent.

C．It recently opened an office in London.

D．It sells products through its Website.