Definition: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Try to find the best answer that is most likely to fill in "_". Note that the URLs in the text have been replaced with [Link].
Input: (CNN) -- Debra Guenterberg doesn't have to go to a horror movie to get spooked. She says she's been living a nightmare for the past 13 years. The Wisconsin woman says she's been stalked by two phantoms. Two men stole her name and her husband's Social Security number. They used the information to obtain credit cards, buy cars and three homes. Like many horror movie villains, the bad guys keep coming back. Thirteen years after the men stole their names, the Guenterbergs are still being turned down for credit because of the damage done by the men, she says. "It's a nightmare," Guenterberg says. "We both feel physically and mentally exhausted. We feel hopeless because we can't fix this."The toll of identity theft includes financial and emotional costsAn estimated 9.1 million Americans have had identities stolen, according to a 2008 surveySecurity experts: Recovery takes months, if not yearsThe Internet has made identity theft easier and more widespread 
 Question:When the collection agencies started calling, the _ say they finally discovered the source of their problem.

Guenterbergs