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, was at that moment in Petchareff's office, impersonating Pashkov. And Pashkov crawled out of the cloud and skimmed northeast to Mir, Boris Pashkov glanced back at the house. Since the publication of "A question, brother." "No questions." "Who smuggled the manuscript out of Russia?" Pashkov frowned convincingly. "Comrade Petchareff has suspected even Medvedev stopped, gaped, then seized Pashkov's hand. "Colonel James! Boris pulled off his head, and crawled out of the robot shell. Pashkov "I hope you need no luggage, Mister Knackenpast," Pashkov said. "We "What's been keeping you, Pashkov?" "You're not playing one of your jokes, Pashkov?" Pashkov landed on the roof of Intelligence in the northeast corner of the Kremlin, hitched up his pants and rode down. In his office, Petchareff removed the cigar from his mouth as Pashkov came in. "Medvedev get my orders?" Petchareff looked up as Pashkov was led forward by the guards. "Not "Don't you know me, chief? Me, Pashkov." Pashkov whispered to Colonel James. "Which one's the real Pashkov?" Petchareff tossed the gown to Pashkov. "This is what Colonel James is "Try and split the allies," Pashkov muttered, reading the legend on the monkey of you once more, you're through, Pashkov. You don't take your "Darling!" Nadezhda threw on Pashkov. In the front office, Pashkov stopped to kiss Nadezhda Brunhildova "But if you're mistaken?" Medvedev put in nervously. "I don't trust him either," Nadezhda said. "But I know my Pashkov. If Pashkov spent an hour at Central Intelligence. Nothing unusual going on he's not Pashkov, I shall let you know in the morning." a sociology seminar on prison reform, a forty-man trade mission from India. An addendum to the Stockholm file listed two Cuban agents operating from Fralsningsarmen's Economy Lodgings. They were buying small arms and ammunition. He thought a moment, impressed the Cubans' address on his memory, and went to his flier. He did not fly to Hotel Reisen at once. Zubov's kidnaping team could landed on the roof of Fralsningsarmen's Economy Lodgings—the Salvation Army flophouse. "My Cuban friends," Pashkov inquired in fluent English at the desk on the top floor. "Are they in?" The old desk clerk looked like a stork. "Yu, room six fifteen," he . By seven o'clock tonight, okay, Gringo?" "What do you expect for seven thousand bucks—service? Look, boys, I'm just a honest businessman. I can't get it for you today. Have a seegar, Pablo." tonight. But you'll have to pay in advance. What do you say, Francisco?" "I counted the money. It is waiting for you. You deliver, we pay." "But how can I trust you? I like you boys, I know you like me, but business is business. I gotta give something to my jobber, don't I?" "Gringo!" At that moment Pashkov knocked on the door. ," Pashkov said through the door. " " The door opened enough to admit the roly-poly visitor into the room. The other Cuban, also bearded and wearing a fatigue cap, held a revolver. "No gun-play, caballeros," Pashkov went on in Spanish. "We are in the "Deliver what, senor?" Sitting down at the table, Pashkov's elbow rested on an invoice, and moments later the invoice was tucked in his pocket. "What kind of ammunition do you need, caballeros?" The Cubans looked at each other. "Thirty-o-six caliber, two-twenty grain. How much can you deliver?" "Two thousand rounds." "Two thousand kronor," Pashkov said, taking an envelope on the table address. "Do you trust us to send the money?" "It is bad for you if I do not trust you," Pashkov said, smiling up at them. "You can trust us. We shall send the money. Please take a cigar." Pashkov took four Havanas from the box they held out to him, stuck three in his breast pocket, and lit one. On his way up to the roof, Pashkov studied the invoice he had lifted. flashed with delight. Pashkov felt like tossing him a bone. without incident, and Pashkov gave him another cigar. Pashkov picked up the phone, dialed the Soviet embassy, and got the with American goods, Americans get blamed. Wonderful confusion. What do you need?" "Thirty-o-six two-twenty, three thousand—if you have it." "Pineapples—one crate." "Only confiscated German potatoes. Will that do?" "Too risky." "It's all right. It will fall to local authorities by tomorrow." Pashkov put down the receiver. Give the Cubans enough to expect more—make sure they stay in town. Zubov was cross-checking his kidnaping plans. He said, "With your Pashkov held up his remaining cigar. "How many cigars in my hand?" "With your pardon, for purposes of concealment. What are your orders?" Pashkov told them to pick up the boxes of ammunition at the embassy and 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 Pashkov, lads. They don't get enough exercise," he grinned, backing out And they were gone. Pashkov turned to the hospital maps and studied Pashkov had changed into the hospital gown with the Coca-Cola legend on leaning forward. In the ambulance court, Zubov and Petya moved quickly to a Red Cross flier. Pashkov dropped the invoice he had lifted from the Cubans on the front seat of the stolen car, and followed. "I hope your sacrifice won't be permanent?" Pashkov said. Zubov seized Pashkov by the scruff of the neck and dragged him towards "You miserable idiot," Pashkov shouted. "You'll get a rest cure for The suit of clothes hanging in the closet might have been Pashkov's "Ah, Colonel," Anastina said as Pashkov fell to, "why did you let them Pashkov glanced at his watch. Colonel James would be landing in Moscow escorted Pashkov through rooms hung with chandeliers, tapestries, Pashkov's face with sudden interest. M. Fanti fingered Pashkov's cheekbone. "How could I have made such a "With your majesty's permission," Pashkov offered, "I am willing to go are instructed to let you pass." A small incident, the roof captain explained. A Swedish Red Cross flier was missing from the National Hospital. Two Cuban agents had been arrested and a cache of small arms and ammunition was found. But no trace of the ambulance. "I suppose the Cubans deny stealing the ambulance?" Pashkov asked. "They say they've been framed by a fat little Russian. But it's transparent, a clumsy job. Imagine, they left a stolen car in the ambulance court and in it an invoice for six cases of ammunition. It was traced to the Cubans in half an hour." Pashkov climbed into his flier. "Well, it's fashionable to blame the Russians for everything." He waved his chubby hand, and took off.

<question>:
Why did Pashkov take the invoice from the Cubans?

<options>:
A The invoice has the address of the hospital on it.
B He uses the invoice to frame them.
C Their phone number is on the invoice.
D He wants documentation of how much money the Cubans owe him.

<answer>:

B