Which of the following employees is an external whistle$-$blower?

Multiple Choice

Laura, who files a complaint against one of her company's suppliers for not meeting a project requirement within the specified time

Evelyn, who reports to a senior manager that her supervisor deliberately stocks expired food products on the shelves of the super market

Benjamin, who alleges to the federal government that the company he works for is fixing prices with its competitors

Ray, who discovers and ignores the fact that his company's main competitor is engaging something unethical