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

<passage>:
Well, ma'am, O'Rielly searched every cranny where even a three-tailed mouse of Venus could have stowed away. His first flight, and O'Rielly when he'd been roped into a dice game with a bunch of Venus lads who myself here." Wherewith Callahan reached hand for O'Rielly's shower door. "Venus dames," O'Rielly said dreamily, "don't boss anything, do they?" Callahan yelped like he'd been bit in the pants by a big Jupiter ant. "O'Rielly! You trying to get both of us condemned to a Uranus moon?" family—everything. "Well, that's when Earth dames took over like armies of wild cats with knots in their tails. Before the guys who'd brought the Venus dames to Earth could say anything they was taken apart too small to pick up with a blotter. Earth dames wound up by flying the Venus ones back where they come from and serving notice if one ever set foot on Earth again there wouldn't be enough left of Venus to find with an electron microscope. "Venus boys rared up and served notice that if Earth ever got any funny notions, right away there wouldn't be enough Earth left to hide in an atom's eyebrow. Touchy as hornets on a hot griddle, them Venus guys. Crazier than bed bugs about war. Could smell a loose dollar a million light years away too. Finagled around until they finally cooked up a deal. "No Venus dames allowed within fifty miles of their port. Earth guys stay inside the high-voltage fence. Any dame caught trying to leave Venus thrown to the tigers for supper. Same for any Earth guy caught around a Venus dame. In return, Earth could buy practically everything at bargain basement prices." "Oh, I was shown the history films in pre-flight," O'Rielly said, still dreamily. "But not a peek of any Venus dame." "Pray heaven you'll never lay eyes on one nor have one get within ten foot of you! Even though you'd know she'd be your damnation wouldn't twenty-five years now. Had more chances to hear more—just hear more, you hear! Only tried to clear your mind about Venus dames so you could put your brain on your control mess. So now put it! If you ain't high on vino and ain't been made nuts by a Venus dame, what answer do we feed the Old Woman?" erect the instant the Old Woman appeared. Behind her stood a colorfully robed specimen of Venus man. Handsome as the devil himself. Fit to snap lesser men in two with his highly bejeweled hands. Fuzzy beards trailed he might at a couple of worms. Could bet your last old sox no female ever told any Venus man what to do. The shower units were equipped so no Burnerman need be more than two drowned himself if he could. "There are rewards," the Old Woman said with the deadly coldness of outer space, "for Earthmen found in a Venus woman's company, and for her leaving her planet." of Venus and this thing can mean war!" Old Woman led the way to her office. Jabbed some buttons on her desk. Panels on opposite walls lit up. "Presidents of Earth and Venus, please," the Old Woman stated evenly. "Interplanetary emergency." Highly groomed flunkies appeared on the panels and were impersonally efforts." Old Woman sighed through her teeth. "Venus woman aboard this ship. Finally on the Earth panel appeared the famous classic features. "The facts, if you please, Captain Hatwoody." The Venus panel finally held steady on universally notorious features, that were as fierce as an eagle's, in a fancy war helmet. "Trillium! My own granddaughter? Impossible! Dimdooly," Mr. President roared at his your official command! Weren't you, Trillium dear?" "No. One of us stowing away was the only way we Venus women could bring our cause to the attention of Earth's President. If Earth will only stop buying from Venus, you won't have any money to squander on your wars any longer no matter what happens to we revolutionaries!" "Revolutionaries? Such claptrap! And what's wrong with my wars? People have to have something to keep their minds off their troubles! Nobody around here gets hurt. Oh, maybe a few scratches here and there. But nobody on Venus dies from the things any more." "But Venus men are so excited all the time about going to war they haven't time for us women. That's why we always radiated such a fatal attraction for Earthmen. We want to be loved! We want our own men home doing useful work!" "Well, they do come home and do useful work! Couple weeks every ten Venus manhood laying down the law. "That's the way things have been on Venus for ten thousand years and all the women in the universe can't change it!" "I have been in constant contact with my Cabinet during these conversations," Madame President said crisply. "Earth is terminating all trade agreements with Venus as of this instant." "What?" Grandpapa's beards near pulled his ears off. "It's not legal! the panel too. "From now on I'm doing the deciding." "Nonsense! You're only my wife!" "And new President of Venus, elected by unanimous vote of all women." "Impossible! The men run Venus! Nobody's turning this planet into another Earth where a man can't even sneeze unless some woman says so!" "Take him away, girls," Berta ordered coolly, whereupon her spouse was Venus women had our own men in our power." "Those crewmen there," Grandmamma President said, "seem to be proof enough that we Venus women no longer radiate any threat to Earth's tranquility." Yes, ma'am, O'Rielly sure felt like proof of something all of a sudden. "Hmmmm, yes," Madame President of Earth observed. "Reactions agree perfectly with the psychoanalytical research project we have been conducting on the subject of the Venus female influence. Madame President of Venus, congratulations on your victory! "Long may the superior sex reign on Venus too! We shall be delighted to receive an Ambassadoress to discuss a new trade treaty at your earliest convenience." grin like the cat that nobody could prove ate the canary. "You—I mean, that Earth guy a hundred twenty-five years ago," O'Rielly said in sudden thought. "If Venus dames wanted to be loved so bad, why did Trillium's Grandmamma let him go?" "Venus guys wasn't so busy playing war all the time," Callahan mumbled, like to himself, "they'd of found out the answer centuries ago. Yep, guess our boy was the only guy on Earth or Venus to find out and live. Dames bossing both planets now, though, his old secret won't be one much longer. Venus dames could of let it out centuries ago themselves but didn't, just to spite Earth probably. Later, was part of organizing to take over Venus, I guess." O'Rielly still had memories of the way he had felt about Trillium before her revolution. "All right, Callahan, why did 'our boy' leave "Anybody ever seen anybody but a Venus guy come built with ear beards? Course not." "But I thought our boy was wearing the best fakes ever." "Ain't nothing can match the natural growed-on variety, no, ma'am. Venus guy kisses a Venus dame, his beards grabs her roundst the ears." "So what?" "Tickles 'em, boy, tickles 'em!"

<question>:
Why have Venus men struggled to keep their women interested in them?

<options>:
A Their culture has men in power, and thus they don't consider women their equals.
B Earth men are too enticing to Venus women. They can't compete.
C They have been too pre-occupied with war, haven't realized the truth.
D Venus females don't interest them enough.

<answer>:

C