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

<passage>:
Petchareff did not believe he was Pashkov. Colonel James, it was clear, Knackenpast's villa. "You came fast, sir," the lieutenant of guards welcomed him at Mir. "We did not expect you for another fifteen minutes." Amigovitch , this house had become known all over the world as Boris The house was strangely quiet. He came to the door of the study and listened. Not a sound. He went in and there, behind the large writing desk, sat Boris Knackenpast. The robot was unscrewing screws imbedded in his neck. looked up. "Ah, Colonel James," Boris said in a voice that seemed to come from a deep well. "Excuse the poor welcome, but I understand we have little time. You scared my valet Medvedev stopped, gaped, then seized Pashkov's hand. "Colonel James! , you confidence man. You are coming in?" "In ten minutes. What have I done now?" "You were supposed to make funeral arrangements for Knackenpast, so what are you doing in Stockholm?" "Stockholm?" the trouble with us. "I hope you need no luggage, Mister Knackenpast," Pashkov said. "We must be off at once." "You're lying and I'll kill you. Don't you think I know about Anastina, Colonel James had landed. But as he climbed down from his flier, the "What's been keeping you, Pashkov?" "Consoling Medvedev. Am I supposed to be in Stockholm?" "Never mind, get here at once. What size hospital gown do you wear?" "Hospital gown?" "Stockholm embassy says you're in the National Hospital there. In a hospital gown. I got through to Anastina. She says it's Colonel James again. He looks like you now." "Too late!" the old valet said from the window. "He'll keep," Pashkov said, hitching up his pants. "Let's be off, have to look like bankers. Anastina says Colonel James was operated on "Pretend not to know me, will he?" she yelled at Colonel James, picking Mister Knackenpast. It won't take long for Petchareff to smell us out." "Look!" guards surrounded the house. "No alarm, no alarm," Pashkov said, pulling Boris away from the window. "Mister Knackenpast, when you see your way clear to my flier, run for closest professional rival, Colonel James, U.S.A. it. But get back into your robot costume." "I can't operate the machine." Knackenpast," Pashkov reported. "When you give the word, he will call Izvestia and tell them Boris is dead." Colonel James said, "There he is, the American spy." Petchareff glanced at his calendar. "We have two other state funerals this week. You made it plain, I hope, we want no repetition of here, Comrade." "Send him in." Pashkov whispered to Colonel James. But Colonel James was running to the flier, throwing Nadezhda's rock at printed in indelible ink: stockholm national hospital At the same moment Boris Knackenpast ran from the house to the flier, his robot gear clattering like Don Quixote's armor. Petchareff tossed the gown to Pashkov. "This is what Colonel James is courtesy of Coca-Cola Petchareff blew cigar smoke in his face. "If Colonel James makes a Boris reached the flier, Colonel James pulled him in, the engine our Cultural Information Center in Chicago." Pashkov winced. "Now, you'll go to Stockholm and switch places with the American colonel and find out what they're up to. Zubov's kidnaping team is there already, at Hotel Reisen. Any questions?" hummed, and they were off. A moment later the flier vanished in the clouds towards Stockholm. know he really is Pashkov? If he's actually Colonel James, I can shoot look like Colonel James to me." his memory, and went to his flier. He did not fly to Hotel Reisen at once. Zubov's kidnaping team could wait. Coming slowly over Stockholm he spotted the National Hospital and circled. Buenas tardes ," Pashkov said through the door. " deliver before I ask payment." "Deliver what, senor?" "We favor any disturbance close to the United States. May I sit down?" lysergic acid diethylamide." "You have that? You have LSD-25?" "I have that. When are you leaving Stockholm?" Again the young beards exchanged looks. "Maybe we stay till tomorrow that she-nurse in the Stockholm National Hospital?" Gonzales, Salvation Army Economy Lodgings. He tucked the invoice into his inner pocket with a satisfied grunt, climbed into his flier and hopped over to Hotel Reisen, where Zubov's kidnaping team was waiting for him. "Darling, why so cruel? Anastina is one of our contacts. Besides, she's trust even me. But then I could not trust Medvedev, either. Yes, that's urges all haste. Colonel James is due to leave the hospital tomorrow." "With your pardon, I shall conduct you to our suite. Plans for kidnaping of Colonel James all ready." map of twenty-third floor. Here is a map of Colonel James' room. Here is hospital routine between midnight and dawn. With your pardon—" Pashkov picked up the phone, dialed the Soviet embassy, and got the guards closed a circle about him. pardon, do we take Colonel James alive or dead-or-alive?" deliver them to the Cubans, and then to commandeer a private automobile. "We have autos at the embassy pool," Zubov suggested. "I want a vehicle off the street. Then report back here with your to Moscow, Kolya lad. Give my clothes to Nadezhda Brunhildova, and tell Comrade Petchareff to expect Colonel James today." Clutching the bundle, Kolya stuck his tongue out at Petya and bounded As Petya brought the flier to a hovering stop against Colonel James' Colonel James awoke, turned on the night lamp, and sat up in the bed, Pashkov stood looking at Colonel James. The resemblance between them "Excellent. Put up your gun, Zubov. Colonel James and I don't get to Zubov focused his crossed eyes on Pashkov. "Take him straight to Petchareff," Colonel James said to Zubov. "I'll report as soon as I know what these Swedes are up to." is Colonel James." Colonel James sat calmly on the bed. He said, "Carry him out." Zubov yanked the colonel up by an arm. "Send me to rest cures, will Colonel James sighed. "I guess we have to keep up appearances," he "Wonderful morning, Colonel James!" "Colonel? Do I still look like Colonel James?" "Do I talk like Colonel James?" "I am Gospodin Pashkov now, Captain. To everybody." "Of course, sir. I'll ring down you are coming." Pashkov glanced at his watch. Colonel James would be landing in Moscow Professor Kristin said, "Colonel James, we presume you have studied the problem in detail. I'm afraid we have delayed announcing the Nobel prize for literature much too long. How soon can you bring Boris Knackenpast to Stockholm?" So there it was: Boris Knackenpast a supreme success, as Pashkov had suspected. It would be amusing to tell robotist Medvedev about it. "Delicate, very delicate," Pashkov said. "Everything depends on my not "We can't wait any longer," Professor Kristin said. "Fortunately, we have an ally in the enemy camp. The robotist, Medvedev, is expecting you at Knackenpast's villa." "Bad show," M. Fanti said suddenly. "No good. His left cheekbone is at "It is a good thing you do for us, Colonel James," Gustavus IX said,

<question>:
What was Colonel James' mission?

<options>:
A Impersonate Pashkov to gain information
B Capture Pashkov
C Kill Boris Knackenpast
D Get Boris Knackenpast to Sweden

<answer>:

D