A、62. B、64. C、60. D、Unknown. C新闻提到，Sarkozy计划将最低退休年龄上调两年，即上调到62岁，可判断在此之前，最低退休年龄应为60岁，C为答案。

Hundreds of thousands of people across France have taken to the streets to demonstrate against President Nicolas Sarkozy’s plans to raise the retirement age. Trade unions say nearly three million people turned out in scores of demonstrations, but the government says less than a million people took part. It’s the third day of protests in the past month.
    The pension reform goes before the upper house of parliament, the Senate, on Tuesday with President Sarkozy insisting that its central provision, raising the minimum retirement age by two years to 62, is non-negotiable. According to the government, the only way that the French pension system can remain economically practical, given longer life expectancy, is that people work for more years. However, opponents, including the Socialist Party, say the changes are unjust and that the pension system can be preserved if higher taxes are imposed on financial institutions and on the better-off.
1. What’s the minimum retirement age in France before Sarkozy’s plans?
2. According to the opponents, whose interest should be protected?