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

<passage>:
it." fancy I've made MUDDLE what it is today. Frankly, I question the weeks. But remember. Yours is purely a rubber-stamp function." of heavy cloth, a loose shirt open at the neck and a short jacket, out on Lovenbroy we've got a serious problem. The wine crop is just about ready. We start picking in another two, three months. Now I don't Arapoulous took one. "Bacchus vines are an unusual crop," he said, puffing the cigar alight. "Only mature every twelve years. In between, the vines don't need a lot of attention, so our time's mostly our own. We like to farm, though. Spend a lot of time developing new forms. "It sounds like it, Mr. Arapoulous. Just what—" "Call me Hank. We've got long seasons back home. Five of 'em. Our year's about eighteen Terry months. Cold as hell in winter eccentric orbit, you know. Blue-black sky, stars visible all day. We do mostly painting and sculpture in the winter. Then Spring and it's the season for woodworkers. Our furniture—" comes the Monsoon. Rain—it comes down in sheets. But the sun's getting closer. Shines all the time. Ever seen it pouring rain in the sunshine? That's the music-writing season. Then summer. Summer's hot. We stay inside in the daytime and have beach parties all night. Lots of beach on Lovenbroy the music and the surf and the bonfires and stars—we're close to the center of a globular cluster, you know...." "You say it's time now for the wine crop?" "That's right. Autumn's our harvest season. Most years we have just the ordinary crops. Fruit, grain, that kind of thing getting it in doesn't take long. We spend most of the time on architecture, getting new places ready for the winter or remodeling the older ones. We spend a lot of time in our houses. We like to have them comfortable. But this year's different. This is Wine Year." Arapoulous puffed on his cigar, looked worriedly at Retief. "Our wine crop is our big money crop," he said. "We make enough to keep us going. But this year...." "The crop isn't panning out?" "Oh, the crop's fine. One of the best I can remember. Course, I'm only twenty-eight I can't remember but two other harvests. The problem's not the crop." "Have you lost your markets? That sounds like a matter for the "Lost our markets? Mister, nobody that ever tasted our wines ever time like the present," he said. dusty, with faded labels, and blackened corks secured by wire. "This isn't native customs." port." mouthful of wine, swished it around his teeth, swallowed. "It's Bacchus bottle toward Retief. "The custom back home is to alternate red wine and black." fresh glasses. "Here's to the harvest." We like to farm. About ten years back some neighbors of ours landed a "That's too bad," Retief said. "I'd say this one tastes more like roast said. "What's the problem? Croanie about to foreclose?" "Well, the loan's due. The wine crop would put us in the clear. But turn over to machinery—and anyway we wouldn't if we could. Vintage grass growing between. The wine-carriers keep on the run, bringing wine to the pickers. There's prizes for the biggest day's output, bets on who can fill the most baskets in an hour.... The sun's high and bright, and it's just cool enough to give you plenty of energy. Come nightfall, the tables are set up in the garden plots, and the feast is laid on: roast turkeys, beef, hams, all kinds of fowl. Big salads. Plenty of fruit. Fresh-baked bread ... and wine, plenty of wine. The cooking's "Then the wine-making. We still tramp out the vintage. That's mostly for the young folks but anybody's welcome. That's when things start to get loosened up. Matter of fact, pretty near half our young-uns are born after a vintage. All bets are off then. It keeps a fellow on his toes though. Ever tried to hold onto a gal wearing nothing but a layer of grape juice?" "Never did," Retief said. "You say most of the children are born after a vintage. That would make them only twelve years old by the time—" "Oh, that's Lovenbroy years they'd be eighteen, Terry reckoning." "I was thinking you looked a little mature for twenty-eight," Retief said. "Forty-two, Terry years," Arapoulous said. "But this year it looks bad. vintage, Croanie steps in. Lord knows what they'll do to the land. Then next vintage time, with them holding half our grape acreage—" "You hocked the vineyards?" "Yep. Pretty dumb, huh? But we figured twelve years was a long time." to see us through the vintage, enough to hire extra hands. Then we'd "Can they pick grapes?" Said it was what they classified as menial drudgery here. Cultural exhibits, you know." What are they getting?" earlier today. It seems she holds a mortgage on some vineyards over General Economies have been trying for months to get a request for institution." waiting...." "You meeting somebody?" "Yeah. Bunch of babies. Kids. How they expect—Never mind. Have one on me." "I'll tell you what I am. I'm a cradle-robber. You know—" he turned to Retief—"not one of those kids is over eighteen." He hiccupped. on." "Thanks," said Karsh. "They'll stay here until take-off time. Can't have the little dears wandering around loose. Might get ideas about going over the hill." He hiccupped. "I mean they might play hookey." "We've scheduled your re-embarkation for noon tomorrow. That's a long wait. MUDDLE's arranged theater tickets and a dinner." "Coming in aboard a Croanie lighter." But the tractors are on their way to Croanie, a world under obligation to Boge. And Croanie holds a mortgage on the best grape acreage on never mind. I'd like you to look up an item for me. How many tractors vehicle. "That's the model WV," she said. "It's what is known as a continental is a tractor. Model WV M-1—" "Five hundred." production of such vintages.... the tractors. I'm wondering if there's been a slip up. My records show "That's correct. Five hundred." tractors." outfit? I should think—" "See here, Retief! Why all this interest in a few surplus tractors? hundred and ninety tractors?" tradition that any time you can get anybody to accept anything as a "The tractors are for transshipment. We've gotten ourselves into a "Why ... ah ... no. Of course not, ha ha." "Who gets the tractors eventually?" "Who gets them?" "Why ... ah ... I've been working with a Mr. Gulver, a Bogan representative." "And when will they be shipped?" "Why, they went out a week ago. They'll be half way there by now. But look here, Retief, this isn't what you're thinking!" "That's worse than listening in on phone conversations, eh? But never fish, I guess. We import our seafood from there. Nice prawns in monsoon "So?"

<question>:
What is a vintage?

<options>:
A The anniversary of Lovenbroy’s independence.
B The time of year that Lovenbroy switches to making music as their primary occupation.
C The time of year that wine grapes are harvested.
D The time of year that children are born.

<answer>:

C