单项选择题

[听力原文]
25Swiss voters overwhelmingly rejected a nationwide referendum Sunday that would have set the nation’s minimum wage at $25 an hour and 22created the world’s highest paid unskilled workforce.
Final results from Sunday’s vote showed 76.3% of voters opposed the Decent Salary Initiative, which would have had the greatest impact on 23immigrants working in such jobs as agriculture, housekeeping and catering.
The vote came days after hundreds of fast-food workers walked off their jobs in many U.S. cities and in more than 30 countries in a protest for higher wages.
The average household income in Switzerland is about $6,800 a month, government statistics show. In the USA, where the minimum wage is $7.25 an hour, the average is roughly $4,300, Census Bureau figures indicate. A recent effort to raise the U.S. minimum to $10 an hour failed to gain congressional traction.
Switzerland, however, features some of the world’s highest prices. 25The country does not have a minimum wage law, so pay scales are determined by employment contracts or collective bargaining. However, 90% of Swiss workers earn more than the proposed minimum and are already among the highest paid in the world.
The Swiss Business Federation, said the results show that the Swiss people wouldn’t tolerate government intervention in a free-market economy.
24Forcing employers to hike wages can mean other cuts—including jobs. At 3.2%, Switzerland’s unemployment rate is among the lowest globally.
Swiss Economics Minister warned that 25"if jobs are being cut, the weakest suffer most." Some workers who make less than $25 an hour had opposed the referendum.

What kind of workers is the minimum wage made for（）

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