单项选择题

In hopes of becoming millionaires, many Filipinos (菲律宾人) began drinking more Pepsi. They hoped to get a bottle cap with the winning number on it. In May 1992, the number was announced: 349. Thousands rushed to get their reward with their bottle caps worth a million pesos (about US $40,000) each.
But Pepsi wouldn’t pay. The company said there was a mistake. The numbers on the caps did not include a security code (保险号), so the caps were not really winners. Up to 800,000 bottle caps had the number 349.
Pepsi has spent millions of dollars on the problem. The company has paid 54 million pesos to real winners. It also paid 500 pesos for each No. 349 cap without the security code.

From the passage we can guess that peso is ().

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