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: The boot of the Ford saloon was very cramped, and the 46-year-old man trapped inside it was suffering from intense claustrophobia. It was also very hot, and the contorted exertions he had undergone to remove his jacket had made him hotter still. A kidnap victim? No. Unlikely as it may seem, the man shut in the boot had chosen to be there. He had met neither the people driving him, nor their colleagues in the accompanying car in front, but they represented his only hope of escaping death. If they failed, he would be taken back to Moscow, interrogated and then shot in a killing-room deep in the dark heart of the headquarters of his employer, the dreaded KGB. Safety would come if they reached Finland, which was only a few miles away. But first, the small convoy had to pass through five frontier controls, all of which were manned by zealous Soviet guards.Oleg Gordievsky, a KGB colonel, made a dramatic escape to the WestHidden in the boot of a car, he was successfully smuggled into FinlandGordievsky had worked as an informant for MI6 for the three years prior 
 Question:There, they found a bedraggled _ officer, who smelled and looked bad after two days of travelling.

KGB