Read the following passage and questions, then choose the right answer from options, the answer should be one of A, B, C, D.

<passage>:
connection with the assault on two peace keepers and illegal entry into the offices of the Ministry for Foreign Affairs." "Why, why," Miss Meuhl stammered. "Yes, of course. And I do want to express my deepest regrets—" don't come in and we don't come out. Your camouflage worked for nine years, but it's all over now. I suggest you keep your heads and resist "Don't!" Retief jumped—too late. Retief exhaled a plume of cigar smoke. "Whaffle left here three months ago," Retief said, "leaving me in "Are they? Are you sure you meant to go this far, Miss Meuhl? A squad "Never mind the excuses," Retief said. "Just tell him I won't be of armed Groaci in the consulate?" "You're making a serious mistake, Shluh," Retief said. Mr. Retief to his quarters in this building—" "I don't advise you to violate my diplomatic immunity, Fith," Retief "Since I'm cutting out the culture from now on," Retief said, "I won't "Don't be a fool, woman," Retief said. "Don't you see what you're "Well!" Miss Meuhl said. "May I ask where you'll be if something comes up?" "I'm going over to the Foreign Office Archives." "You think all women are fools, don't you, Mr. Retief?" She turned to "That's an illegal waiver," Retief said. "I'm consul here, whatever rumors you've heard. This thing's coming out into the open, whatever you do. Don't add violation of the Consulate to the list of Groacian atrocities." never to reopen that wound, Mr. Retief." "The importance of my task here," Retief said, enunciating the glottal Outside, Retief stood for a moment looking across at the deeply carved Retief studied the carving over the open doorways along the street. "To enjoy a cooling drink," Retief said in Groacian, squatting down at decide whether I like it." "To be grappled in by peace-keepers for poisoning of—foreigners." The "To get the lead out," Retief said, placing a thick gold-piece in the Retief turned. A tall Groacian vibrated his mandibles in a gesture "I've changed my mind," Retief said to the bartender. "To be grateful door. The other Groaci released him, hurried back inside. Retief looked "To not endure such insolence!" The Groacian advanced toward Retief. Retief backed away. head down, scuttled away. Retief backed into the opening to a narrow who followed, furious. Retief backed, rounded a corner into a narrow Retief stepped around him, seized his collar and yanked. The Groacian fell on his back. Retief stood over him. The downed native half-rose Retief put a foot against his chest and pushed. "To not be going anywhere for a few minutes," Retief said. "To stay "Government men, I imagine. Word travels fast." Retief pulled off his cape. "This saves me the trouble of paying another call at the Foreign Ministry." "What have you been doing? They seem very upset, I don't mind telling you." indicative of rank rose as Retief entered the room. Neither offered a courteous snap of the mandibles, Retief noted. They were mad, all right. "I am Fith, of the Terrestrial Desk, Ministry of Foreign Affairs, Mr. Consul," the taller Groacian said, in lisping Terran. "May I present Shluh, of the Internal Police?" "Never mind that," Retief said. "These gentlemen didn't come here to foreigner. A Terrestrial, to be precise. Investigation by my department indicates that the description of the culprit closely matches that of the Terrestrial Consul." "Just keep that recorder going," Retief snapped. Fith puffed out his throat indignantly. "You reopen an old wound, "I shall ask for your immediate recall, Mr. Consul. Were it not for your diplomatic immunity, I should do more—" "Why did the government fall, Fith? It was just after the task force diplomatic mission." "This is an internal matter!" Fith cried, in his faint Groacian voice. "The new regime has shown itself most amiable to you Terrestrials. It "—to keep the Terrestrial consul and his staff in the dark," Retief Retief turned a steady look on Miss Meuhl. She closed her mouth. The "How did they die?" Retief snapped. "Did you murder them, cut their "No!" Fith gasped. "I must correct this terrible false impression at "False impression, hell," Retief said. "They were Terrans! A simple "I see," Retief said. "They died." "We'll deal with that question later," Retief said. "Right now, I want "How could we know?" Fith moaned. a blunder, it is true, a great blunder. But we have tried to make "Miss Meuhl," Retief said. "If I don't come back in a reasonable length Retief stooped under the heavy timbers shoring the entry to the cavern. Retief walked along the raised wooden catwalk, studying the ship. Empty "How did you get it in here?" Retief asked. Retief grunted. "Let's go inside." Retief clambered up a narrow companionway, glanced around the interior "You can skip all that," Retief said. "You're nine years late. The "We were at fault," Fith said abjectly. "Now we wish only friendship." Retief looked grimly at the slender Foreign Office official. "Where is "Where is that ship?" Retief rapped out. "You never learn, do you? "You can and you will, Fith," Retief said. "I intend to get to the Retief eyed Fith. "Don't try it," he said. "You'll just get yourself in Retief looked at the four policemen. "I see your point," he said. "If you'll listen, you may find out," Retief said. "I have no time "That's my decision," Retief said. "I have a job to do and we're "Blame it on me if it will make you feel any better," Retief said, "but It was an hour before dawn when Retief keyed the combination to the safe-lock and stepped into the darkened consular office. He looked tired. Retief, rose and snapped on a light, turned to stare. "I got a little dirty. Don't worry about it." Retief went to his desk, "Are you going to tell me where you've been?" "I have a message to get off first, Miss Meuhl," Retief said sharply. "I've been to the Foreign Ministry," he added. "I'll tell you all about it later." "At this hour? There's no one there...." "Exactly." Miss Meuhl gasped. "You mean you broke in? You burgled the Foreign Office?" "That's right," Retief said calmly. "Now—" "Get that sender going, woman!" Retief snapped. "This is important." "I've already done so, Mr. Retief!" Miss Meuhl said harshly. "I've been "I have done my duty, Mr. Retief," Miss Meuhl said. "I made a full Retief reached out and snapped off the communicator. The triumphant Retief went on earnestly, "I've found the missing cruiser." all around." "You're defying lawful authority! I'm in charge here now." Miss Meuhl Retief ignored Miss Meuhl's fury as he spoke into the recorder. "Go ahead," Retief said. "Answer it." A Groacian official appeared on the screen. "Yolanda Meuhl," he said without preamble, "for the Foreign Minister of to make available for questioning Mr. J. Retief, former consul, in

<question>:
What was Retief's ultimate mistake?

<options>:
A Asking too many questions
B Trusting Miss Meuhl to do what he said
C Making the Groacians show him the ship
D Breaking into the Foreign Ministry

<answer>:

B