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

<passage>:
I'm talking sense. Listen! I'm in trouble because I went to Earth to BY WILLIAM TENN Illustrated by GENE FAWCETTE way to Venus for a husband. So let's." girl besides—she don't always know what's best. Put me on a spaceship Twenty minutes after we lifted from the Sahara Spaceport, I wriggled out of my acceleration hammock and started for the door of our cabin. hammocks. That meant only the ship's crew was up and about. Ship's It was hard to believe I was traveling in space at last. Ahead and , no portholes, no visiplates, nothing. way to the outside level which ran just under the hull. There were portholes on the hull. I'd studied all that out in our cabin, long before we'd lifted, on the dining salon and the library and Lifeboat 68 where we should go in case of emergency. I looked for the important decided to go after a husband on a luxury liner. On a cargo ship, now, I'd be climbing from deck to deck on a ladder instead of having gravity underfoot all the time just like I was home on the bottom of the Gulf Still, it was pretty exciting to press my nose against the slots in the the crossway into an airtight fit in case a meteor or something smashed into the ship. And all along there were glass cases with spacesuits into one of those! Bet it would be more fun than those diving suits back in Undersea! And all the time I was alone. That was the best part. could see the portholes. Every twelve feet, they were, filled with the Well! Didn't I know from my civics class that only women could be Earth didn't I know that you had to be a citizen of a planet in order to get an interplanetary passport? Sis had explained it all to me in the careful, patient way she always talks politics and things like that to men. "Technically, Ferdinand, I'm the only passenger in our family. You can't be one, because, not being a citizen, you can't acquire an Earth clause—'Miss Evelyn Sparling and all dependent male members of family, this number not to exceed the registered quota of sub-regulations pertaining'—and so on. I want you to understand these matters, so that wouldn't be on their way to Venus to hook husbands. off the black of space. I was hoping to see the Earth, but I figured it must be on the other side of the ship or behind us. I pressed my nose against the port and saw the tiny flicker of a spaceliner taking off, Marsbound. I wished I was on that one! Thirty-two. Crew: Eleven. Unauthorized personnel keep away!" I crept up to the porthole nearest it and could just barely make out combinations I knew, and nothing happened. I only remembered one voice key—might as well see if that's it, I figured. "Twenty, Twenty-three. Open Sesame." around my throat and plucked me inside as if I'd been a baby sardine. I bounced once on the hard lifeboat floor. Before I got my breath and He was wearing a one-piece suit made of some scaly green stuff that looked hard and soft at the same time. Sparling. I'm very pleased to meet you, Mr.—Mr.—" "Hope for your sake," he said to me, "that you aren't what you seem—tadpole brother to one of them husbandless anura." " He chuckled and swung me up into one of the bunks that lined the , I said, not dryleg. And what's Undersea?" "Well, in Undersea we called foreigners and newcomers drylegs. Just like on Venus, I guess, you call them dryhorns." And then I told him how Undersea had been built on the bottom of the Gulf of Mexico, when figured that a lot could still be reached from the sea bottoms. listening to the pressure pumps. He raised his eyebrows and looked disgusted when I told how Mom, as Undersea representative on the World up in a surfacing boat. might as well use it to migrate. There was no future for her on Earth, planets, Sis says, until by now even if a woman can scrounge a personal bellyful!" able to find any who were willing to come out to his lonely little islands he had decided to go to Earth where there was supposed to be a The moment he landed on Earth he was in trouble. He didn't know he had to register at a government-operated hotel for transient males he have this close to the hull?" After a moment of sober reflection, I nodded. "You're right. I've also become a male outside the law. We're in this together." He guffawed. Then he sat up and began cleaning his blaster. I found call you Ford. My name's Butt. Butt Lee Brown." I liked the sound of Ford. "Is Butt a nickname, too?" blaster fast enough to call me that. You see, Pop came over in the name they were saving for a girl." "You had a lot of brothers, Mr. Butt?" He grinned with a mighty set of teeth. "Oh, a nestful. Of course, they that, Mr. Butt?" "Butt. Just plain Butt to you, Ford." He frowned and sighted at when the dinner gong rang. Butt told me to scat. He said I was a fruit. It seemed there was nothing but processed foods in the lifeboat and Butt was used to a farmer's diet. Trouble was, he was a special kind of farmer. Ordinary fruit would have been pretty easy to sneak into my pockets at meals. I even found a way to handle the kelp and giant watercress Mr. Brown liked, but things about Venus every time I visited that stowaway.... between a lousy government paddlefoot from New Kalamazoo and the slaptoe slinker who is the planter's friend. After a lot of begging, Butt Lee Brown explained the workings of his blaster, explained it Sis had insisted I come along to the geography lecture. Most of the during the lecture, but not my in for it. "I've been reading up on Venusian geography in the ship's in the ship's "Paddlefoot," I sneered. carefully, "that is used only by Venusian riffraff." "Riffraff," I had to answer, knowing I was getting in deeper all the time and not being able to help it. I mustn't give Mr. Brown away! "They're trappers and farmers, pioneers and explorers, who're building Venus. And it takes a real man to build on a hot, hungry hell like , Ferdinand, what evil, criminal male is speaking through your mouth!" "Nobody!" I insisted. "They're my own ideas!" "They are remarkably well-organized for a young boy's ideas. A boy who, I might add, has previously shown a ridiculous but nonetheless A trap seemed to be hinging noisily into place. "One of the passengers "Nobody! Nobody! " All the same, I wouldn't get Mr. Butt Lee Brown into trouble if I could The door opened on the signal, "Sesame." When Butt saw somebody was with me, he jumped and the ten-inch blaster barrel grew out of his "An honor, Miss Sparling," he said in that rumbly voice. "Please come right in. There's a hurry-up draft." intended for the personnel of this ship solely in emergency?" Butt laughed slowly and carefully as if he were going over each word. Eleanor Roosevelt because a couple of the boys in the crew are friends of mine I suppose you didn't know that under space regulations that makes him "Sure I knew. Also know that if I'm picked up as a stowaway, I'll be sent back to Earth to serve out those fancy little sentences."

<question>:
How did Butt come aboard the spaceship?

<options>:
A His actions on Earth led him to be deported on the ship
B He had a fake passport
C He was able to travel freely between Earth and Venus
D He was assisted by unnamed parties

<answer>:

D