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

<passage>:
Groaci wish only friendship with the Terrestrials, but—" reaching for the safe-lock release.... "Don't!" Retief jumped—too late. Retief exhaled a plume of cigar smoke. "Never mind the excuses," Retief said. "Just tell him I won't be Mr. Retief to his quarters in this building—" "I don't advise you to violate my diplomatic immunity, Fith," Retief Retief looked thoughtfully at Miss Meuhl. "You've been here on Groac the present government in power?" "I'm sure I haven't pried into—" "What about that Terrestrial cruiser? The one that disappeared out this way about ten years back?" "Mr. Retief, those are just the sort of questions we "The Groaci are a very sensitive race. They don't welcome outworlders the fact that Terrestrials subjected them to deep humiliation on one occasion." "You mean when they came looking for the cruiser?" "I, for one, am ashamed of the high-handed tactics that were employed, grilling these innocent people as though they were criminals. We try never to reopen that wound, Mr. Retief." "They never found the cruiser, did they?" "Certainly not on Groac." Retief nodded. "Thanks, Miss Meuhl," he said. "I'll be back before "OK, Skinny, I know when I'm licked," Retief said in Terran. "To keep Retief studied the carving over the open doorways along the street. 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. who followed, furious. Retief backed, rounded a corner into a narrow Retief stepped around him, seized his collar and yanked. The Groacian Retief put a foot against his chest and pushed. "Government men, I imagine. Word travels fast." Retief pulled off his indicative of rank rose as Retief entered the room. Neither offered a Miss Meuhl gasped audibly. "Have you ever heard," Retief said, looking steadily at Fith, "of a Terrestrial cruiser, the ISV Terrific , which dropped from sight in "Just keep that recorder going," Retief snapped. Somewhat annoying to the Groaci, maybe—at the most. If they were they were exhibited to the gentle Groaci public. Hauled through the "How did they die?" Retief snapped. "Did you murder them, cut their "No!" Fith gasped. "I must correct this terrible false impression at once." "False impression, hell," Retief said. "They were Terrans! A simple narco-interrogation would get that out of any Groacian who saw the parade." "They fell ill," Fith said. "One by one...." "We'll deal with that question later," Retief said. "Right now, I want more information. Where did you get them? Where did you hide the ship? What happened to the rest of the crew? Did they 'fall ill' before the "How could we know?" Fith moaned. a blunder, it is true, a great blunder. But we have tried to make amends...." "Where is the ship?" "The ship?" "What did you do with it? It was too big to just walk off and forget. Where is it?" "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. He peered into the gloom at the curving flank of the space-burned hull. "Any lights in here?" he asked. A Groacian threw a switch. A weak bluish glow sprang up. Retief walked along the raised wooden catwalk, studying the ship. Empty emplacements gaped below lensless scanner eyes. Littered decking was visible within the half-open entry port. Near the bow the words 'IVS Terrific B7 New Terra' were lettered in bright chrome duralloy. "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 "I've seen enough," Retief said. was a heavy cruiser, about twenty thousand tons." Retief looked grimly at the slender Foreign Office official. "Where is she, Fith? I won't settle for a hundred-ton lifeboat." overlooked your probing into matters not properly within your sphere of responsibility. My patience is at an end." "Where is that ship?" Retief rapped out. "You never learn, do you? You're still convinced you can hide the whole thing and forget it. I'm telling you you can't." "We return to the city now," Fith said. "I can do no more." "You can and you will, Fith," Retief said. "I intend to get to the four armed constables. They moved to ring Retief in. Retief eyed Fith. "Don't try it," he said. "You'll just get yourself in deeper." Retief looked at the four policemen. "I see your point," he said. vehicle bobbed and swayed along the narrow highway. Retief listened to going to tell you. I have to move rapidly now, to catch the Groaci off "If you'll listen, you may find out," Retief said. "I have no time happened nine years ago I'm concerned with. It's what's happening now. I've told you that it was only a lifeboat the Groaci have hidden out. Don't you understand the implication? That vessel couldn't have come far. The cruiser itself must be somewhere near by. I want to know where!" "The Groaci don't know. They're a very cultured, gentle people. You can "The Groaci won't waste any time destroying every piece of paper in the Groaci is to dispose of both of us. We're the only ones who know Beam it through on a mayday priority. Then tell the Groaci what you've "I'll do nothing of the sort! The Groaci are very fond of me! You ... It was an hour before dawn when Retief keyed the combination to the 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, "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 "He's here now," Miss Meuhl said to the screen. She looked at Retief "That's good," Retief said. "I don't think the Groaci can knock us off "I have done my duty, Mr. Retief," Miss Meuhl said. "I made a full Retief reached out and snapped off the communicator. The triumphant "If I'd listened any longer, I might have heard something I couldn't ignore. I can't afford that, at this moment. Listen, Miss Meuhl," Retief went on earnestly, "I've found the missing cruiser." "You heard him relieve you!" "I heard him say he was Retief ignored Miss Meuhl's fury as he spoke into the recorder.

<question>:
Why isn’t Retief satisfied when the Groaci finally show him the missing cruiser?

<options>:
A Retief believes the cruiser they show him is a decoy. The real missing cruiser was at least twenty-tons, which is much larger than the ship the Groacians reveal.
B Retief believes the cruiser they show him isn’t human made at all, meaning the real cruiser is still out there.
C Retief believes the cruiser they show him is a replica, meaning the real cruiser is still out there.
D Retief believes the cruiser they show him is a decoy. The real missing cruiser was a battle ship, while the cruiser they show him is of the domestic variety.

<answer>:

A