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

<passage>:
The Blue Behemoth By LEIGH BRACKETT Shannon's Imperial Circus was a jinxed space-carny leased for a mysterious tour thil , but it didn't matter. The pitcher "Kidding." Shannon put his elbows on the table and peered at me through a curtain of very blond hair that was trying hard to be red. "He says I'm kidding! With Shannon's Imperial Circus, the Greatest Show in Shannon got up. He got up slowly. I had plenty of time to see his grey-green eyes get sleepy, and hear the quarter-Earth-blood Martian girl wailing about love over by the battered piano, and watch the toward us, pleased and kind of hungry. pleasantly and said, very gently: he was a lousy bill-collecter and I felt sorry for him. Bucky Shannon settled his shoulders and hips like a dancer. grey in his hair and his skin was pink, soft, and shaved painfully clean. He had the kind of a face that nice maiden-ladies will trust with their last dime. I looked for his strong-arm squad. stayed placid and babyish, almost transparent. I realized with a start that it wasn't transparent at all. It was the most complete dead-pan I He sat down, looking like a mean dog waiting for the postman. Beamish ignored him. He went on, quietly, "I have always held that entertainment, of the right sort, is the most valuable aid humanity can have in its search for the alleviation of toil and boredom...." entertainment of the— proper He said, "Boss, Gertrude's actin' up again." "Gertrude be blowed," growled Bucky. "Can't you see I'm busy?" Gow's black eyes were unpleasant. "I'm tellin' you, Boss, Gertrude fit me for a coffin. "Okay! But Gertrude's unhappy. She's lonesome, "Gertrude?" "Yeah. She's kind of temperamental." Bucky took a quick drink. I finished for him. "She's the star attraction of our show, Mr. Beamish. A real blue-swamp Venusian cansin Brothers, and she's much smaller than Gertrude." She was also much younger, but I didn't go into that. Gertrude may be a little creaky, but she's still pretty impressive. I only hoped she wouldn't die on us, because without her we'd have a sicker-looking circus than even I could stand. Beamish looked impressed. "A . Well, well! The mystery surrounding the origin and species of the is a fascinating subject. The extreme rarity of the animal...." green girl from Tethys who could roll herself like a hoop, and Zurt the muscle man from Jupiter, and all the other assorted geeks and kinkers I didn't want to see Gertrude. I never got over feeling funny going a dim glow. Gow was evidently holding Gertrude's hand. We started down near as happy as Shannon, and my skin began to crawl a little. It's the smell, I think rank and sour and wild. And the sound of them, ripping through the musty darkness. Gertrude, on the wailing wall. time. My stomach turned clear over. I called Gertrude every name I could think of, and I couldn't hear myself doing it. Presently a great worse," he said. "She's lonesome." "That's tough," said Bucky Shannon. His grey-green eyes looked like an owl's. He swayed slightly. "That's sure tough." He sniffled. I looked at Gertrude. Her cage is the biggest and strongest in the tank and even so she looked as though she could break it open just taking a deep breath. I don't know if you've ever seen a Dame Nature had an idea that didn't jell. The cansins were pretty I wouldn't know, of course, but Gertrude looks to me like she got stuck some place between a dinosaur and a grizzly bear, with maybe a little bird blood thrown in. Anyway, she's big. I couldn't help feeling sorry for her. She was crouched in the cage with her hands—yeah, hands—hanging over her knees and her snaky head sunk into her shoulders, looking out. Just looking. Not at anything. Her eyes were way back in deep horny pits, like cold green fire. The lantern light was yellow on her blue-black skin, but it made the mane, or crest, of coarse wide scales that ran from between her eyes clear down to her flat, short tail, burn all colors. She looked like old Mother Misery herself, from way back before time began. Gow said softly, "She wants a mate. And somebody better get her one." Bucky Shannon sniffled again. I said irritably, "Be reasonable, Gow! cansin . There may not even be any." Gertrude screamed again. She didn't move, not even to raise her head. The sadness just built up inside her until it had to come out. That close, the screech was deafening, and it turned me all limp and cold inside. The loneliness, the sheer stark, simple pain.... Bucky Shannon began to cry. I snarled, "You'll have to snap her out of this, Gow. She's driving the rest of 'em nuts." looking out over the tank, sniffing a little, like a hound. Then he turned to Gertrude. "I saved her life," he said. "When we bought her out of Hanak's wreck and everybody thought she was too hurt to live, I saved her. I know her. I can do things with her. But this time...." He shrugged. He was huge and tough and ugly, and his voice was like a woman's talking about a sick child. "You were right, Jig," he mumbled. "Circus is no good. I know it. But it's all I got. I love it, Jig. Unnerstan' me? Like Gow there with Gertrude. She's ugly and no good, but he loves her. I love...." "Sure, sure," I told him. "Stop crying down my neck." rose up out of the darkness in little lazy coils, sparkling faintly with blue, cold fire. and heavy. The noise burst suddenly in a deafening hell of moans and roars and shrieks, packed in tight by the metal walls, and above it all I could hear Gertrude's lonely, whistling scream. I thought, " Somebody's down here. Somebody let 'em out. Somebody wants thak -weed. It smelt. "You pretty, Mis' Jig," he giggled. "You funny like hell." kittens. Nobody would have minded that, only one of 'em had only four legs. It While we passed the hatchway to the brute tank, I could hear Gertrude, stood with the hot rain running off our slickers, looking. I heard a noise behind me and looked around. Ahra the Nahali woman was standing in the mud with her arms up and her head thrown back, and her triangular mouth open like a thirsty dog. She didn't have anything on but her blue-green, hard scaled hide, and she was chuckling. It didn't sound nice. the electric power they carry in their own bodies. They're Venusian middle-swampers, they're not human, and they never forget it. Ahra opened her slitted red eyes and looked at me and laughed with white reptilian teeth. "Death," she whispered. "Death and trouble. The jungle tells me. I can The hot rain sluiced over her. She shivered, and the pale skin under her jaw pulsed like a toad's, and her eyes were red. They are angry, and I smell death in the wind!" She turned away, laughing, and I cursed her, and my stomach was tight

<question>:
What was special or impressive about Gertrude?

<options>:
A Her outrageous temperment
B She was an extreme rarity.
C Her extraordinary size and young age
D She was exceptionally talented

<answer>:

B