Ricardo Semler became boss of his father's business in Brazil at the age of 21．The name of the company is Semco．It sold parts for ships．Semler Junior worked like a mad man，from 7：30am to midnight every day．One afternoon，while he was visiting a factory in New York，he fell down．The doctor said，"There's nothing wrong with you．But if you continue like this，you'll find a new home in our hospital．"Semler got the message．He changed the way he worked．In fact，he changed the ways his workers worked too．

He let his workers take more responsibility so that they would be the ones worrying when things went wrong．He allowed them to set their own salaries，and he cut all the jobs he thought were unnecessary，like receptionists and secretaries．

He changed the office：instead of walls，they have plants at Semco，so bosses can't shut themselves away from everyone else．And the workers are free to decorate their workspace as they want．As for uniforms，some people wear suits and others wear T-shirts．

Semco has flexible （灵活的）working hours：the employees decide when they need to arrive at work．Also，Semco lets its workers use the company's machines for their own projects，and makes them take holidays for at least thirty days a year．

It sounds perfect，but does it work？The answer is in the numbers：in the last six years，Semco's revenues （收入）have gone from 35million to 212million．The company has grown from eight hundred employees to 3，000．Why？

Semler says it's because of"peer pressure"．Peer pressure makes employees work hard for everyone else．If someone isn't doing his job well，the other workers will not allow the situation to continue．In other words，Ricardo Semler treats his workers like adults rather than children，and expects them to act like responsible adults．And theydo．

69．Where is Ricardo Semler's company？___．

A．In New York

B．In Brazil

C．In the UK

D．The passage doesn't mention it．