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

<passage>:
"Now, Miss Sparling, no hoopla. I'm saying let's get married, and you know it. You figured out from what the boy told you that I was chewing on you for a wife. You're healthy and strong, got good heredity, you know how to operate sub-surface machinery, you've lived underwater, and your disposition's no worse than most of the anura I've seen. Prolific I've always said that even if Sis is seven years older than me—and a "Now you be careful, Ferdinand," Sis called after me as she opened a Family Problems of the Frontier Woman . "Remember you're a nice boy. Don't make me ashamed of you." that gave the feel of great empty space like I'd read about in The Boy 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 of Mexico. But women always know what's right, and a boy can only make faces and do what they say, same as the men have to do. careful, patient way she always talks politics and things like that to men. "Technically, Ferdinand, I'm the only passenger in our family. You pertaining'—and so on. I want you to understand these matters, so that you will grow into a man who takes an active interest in world affairs. No matter what you hear, women really like and appreciate such men." Of course, I never pay much attention to Sis when she says such dumb things. I'm old enough, I guess, to know that it isn't what Women like and appreciate that counts when it comes to people getting married. If it were, Sis and three hundred other pretty girls like her wouldn't be on their way to Venus to hook husbands. with me. I knew what Sis could say to that , but at least it was an I held out my hand the way Sis had taught me. "My name is Ferdinand What? " "A 'nuran is a female looking to nest. Anura is a herd of same. Come from Flatfolk ways." about the same time settlements were springing up on the planets. He looked impressed when I told him about Mom and Pop being one of the first couples to get married in Undersea. He looked thoughtful when I listening to the pressure pumps. He raised his eyebrows and looked disgusted when I told how Mom, as Undersea representative on the World Council, had been one of the framers of the Male Desuffrage Act after planets, Sis says, until by now even if a woman can scrounge a personal husband, he's not much to boast about." The stranger nodded violently. "Not on Earth, he isn't. Those busybody He told me about it. Women were scarce on Venus, and he hadn't been 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 surplus. Naturally, having been born and brought up on a very primitive planet, he didn't know "it's a woman's world," like the older boys in school used to say. came from, a man spoke his piece when he'd a mind to, and his woman walked by his side." "What happened?" I asked breathlessly. 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 violence never accomplishes much that's important. My brother Sas, now—" He had just begun to work into a wonderful anecdote about his brother time to learn it and you might's well learn fast. Before then, you're plain too young to be even near it." "I don't have a father to give me one when I come of age. I don't even have an older brother as head of my family like your brother Labrador. she —" "She'll marry some fancy dryhorn who's never been farther South than the Polar Coast. And she'll stay head of the family, if I know her his biceps, "that sister. She ever...." And he'd be off again, cross-examining me about Evelyn. I sat in the swivel chair he'd vacated and tried to answer his questions. But there was a lot of stuff I didn't know. Evelyn was a healthy girl, for How would I know that stuff would lead to trouble for me? Sis had insisted I come along to the geography lecture. Most of the other girls who were going to Venus for husbands talked to each other sister! She hung on every word, took notes even, and asked enough questions to make the perspiring purser really work in those orientation periods. "I am very sorry, Miss Sparling," he said with pretty heavy sarcasm, The purser nodded slowly. "I forgot," he admitted. "Sorry, ladies, but the boy's right. Please make the correction in your notes." But Sis was the only one who took notes, and she didn't take that one. She stared at me for a moment, biting her lower lip thoughtfully, while of the right hand that Mom used to use just before challenging the opposition to come right down on the Council floor and debate it out Earth against the possibility that they might be read by susceptible young male minds like yours. She would not have allowed—this Terran Agent—" "Does it, now?" she said, looking at me as if I were beginning to grow a second pair of ears. "Tell me more." "You can't have meek, law-abiding, women-ruled men when you start civilization on a new planet. You've got to have men who aren't afraid , Ferdinand, what evil, criminal male is "They are remarkably well-organized for a young boy's ideas. A boy who, I might add, has previously shown a ridiculous but nonetheless entirely masculine boredom with political philosophy. I plan to have a government career on that new planet you talk about, Ferdinand—after I have found a good, steady husband, of course—and I don't look forward to a masculinist radical in the family. Now, who has been filling your head with all this nonsense?" I was sweating. Sis has that deadly bulldog approach when she feels "What is this picture of me doing in your pocket, Ferdinand?" "The passengers on this ship are all female. I can't imagine any of them that curious about my appearance. Ferdinand, it's a man who has in their ancient, bloody ways. Ferdinand, who has been perverting that "Ferdinand, there's no point in lying! I demand—" "I told you, Sis. I told you! And don't call me Ferdinand. Call me Now, you listen to me, Ferdinand...." moments. I couldn't fool Sis. She just knew me too well, I decided miserably. Besides, she was a girl. All the same, I wouldn't get Mr. Butt Lee Brown into trouble if I could help it. I made Sis promise she wouldn't turn him in if I took her to him. And the quick, nodding way she said she would made me feel just a little better. fingers. Then he recognized Sis from the pictures. when she saw the wild mass of hair rolling down his back. "An honor, Miss Sparling," he said in that rumbly voice. "Please come right in. There's a hurry-up draft." explanation, but he had taken a couple of his big strides and was in the control section with Sis. She didn't give ground, though I'll say that for her. She only came to his chest, but she had her arms crossed sternly. "Needed nothing. Everyone wanted peace. Earth is a weary old world." "It's a world of strong moral fiber compared to yours, Mr. Alberta Lee Brown." Hearing his rightful name made him move suddenly and tower over

<question>:
How does Ferdinand relate to his sister?

<options>:
A He never keeps secrets from her and she trusts him completely because of it
B He feels close to her as a sibling, but yearns for a father figure
C He knows that she deliberately doesn’t teach him about politics to keep him naive
D He feels protective of her and she appreciates his consideration

<answer>:

B