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

<passage>:
Volpla That next week, I transported all of the volplas out to the oak woods. the volplas to use the fire drill and they were already utilizing the nothing around that might connect the sudden appearance of the volplas volplas only a few more weeks to learn their means of survival and to write a paper about my results." Except, of course, that the woods were full of volplas. At night, I Volplas at last. Three of them. Yet I had always been so sure I could create them that I had been calling them volplas for ten years. No, his graying head from a cage. I had called them volplas since the day old Nijinsky's elongated arms and his cousin's lateral skin folds had withdrew the intravenous needles from my first volplas. I carried their when I slipped out. "Come on, you old hermit. I have a buffet on the terrace." boy unsaddle the horse and slap it away to the pasture. I thought, "By God, wouldn't he have a fit if he knew what I have back there in that lab! Wouldn't they all!" "Is that any reason for wearing clothes? Look at him. He's a young man sooner than already." since you came out of the lab." "I told you—" "Oh, not that again! You were dangerous at any age." She reached up and grabbed my ear. She narrowed her eyes and put a mock grimness on her lips. "It's a joke," I assured her. "I'm going to play a tremendous joke on the whole world. I've only had the feeling once before in a small way, but I've always...." "Well, when my old man was pumping his first fortune out of some oil on the walk in front of the movie just as Theda Bara's matinee let out. The best part was that no one had seen me do it. They just couldn't understand how so many snakes got there. I learned how great it can be to stand around quietly and watch people encounter the surprise that my first volplas were shockingly humanoid. They were also much faster than had been their predecessors in organizing their nervous activity after the slumbrous explosion of growth in the metabolic accelerator. When I returned to the lab, they were already moving about on the mattress and the male was trying to stand. that the eyes were large and nocturnal. The cranium was in the same proportion to the body as it is in the human. his arms out and tried to tease the spars open. They were not new. The spars had been common to the basic colony for years and were the result Suddenly, as I teased the male volpla, this happened. them in a most humanlike way. They were active, curious, playful and decidedly amorous. The male watched me, grinning. He said, "'Ello, 'ello." dreamed. I would invent a euphonious set of words to match the Basic have their own crafts and live in small tree houses. I would teach them legends: that they had come from the stars, that they had subsequently watched the first red men and then the first white men enter these hills. loose. There would be volpla colonies all up and down the Coast before anyone suspected. One day, somebody would see a volpla. The newspapers would laugh. Then someone authoritative would find a colony and observe them. He would conclude, "I am convinced that they have a language and speak it intelligently." The government would issue denials. Reporters would "expose the truth" and ask, "Where have these aliens come from?" The government would reluctantly admit the facts. Linguists would observe at close quarters and learn the simple volpla language. Then would come the legends. Volpla wisdom would become a cult—and of all forms of comedy, cults, I "Hey, wait a minute," Guy objected. "They're about to show the shots of the launching." himself explaining that when he pressed the button before him, the hatch on the third stage of the great rocket in the background would ?" On the screen, Guy's big dead-earnest face was explaining more about the project and suddenly I realized that this was an instrument-bearing rocket they hoped to land on the Moon. It would broadcast from there. Well, now—say, that my volplas. But only for a moment. map behind him. "From this position, the telemeter known as Rocket Charlie will be broadcasting scientific data for several months. But now, ladies and The women were kissing him and hugging him. Everybody was yelling at once. I used the metabolic accelerator to cut the volplas' gestation down to By the next spring, I had a colony of over a hundred volplas and I shut I had devised the language for them, using Basic English as my model, My wife and the kids went down to Santa Barbara for a week and I took the opportunity to slip the oldest of the males and his two females out of the lab. I put them in the jeep beside me and drove to a secluded little valley their arms, the spars would open and spread those glorious planes. Almost two hours went by before the male made it into the air. His playful curiosity about the world had been abandoned momentarily and he was chasing one of the girls. As usual, she was anxious to be caught motored out into the hills to witness this! Of course, the volplas didn't want to return to the lab. There was a I watched them affectionately and wondered about the advisability of leaving them out here. Well, it had to be done sometime. Nothing I could tell them about surviving would help them as much as a little actual surviving. I called the male over to me. He looked at me. "How?" "I don't think you can get at them in the tree. You'll have to soar up above and catch one of them on the wing when they fly away. Think you "Chances are they won't stay long. Keep your eye on the tree in case they leave while you are climbing." criss-crossing the ridge, working his way back to us. The two girls were watching him intently. They came over to me wonderingly, stopping now and then to watch him. When they were standing beside me, they said nothing. They shaded their eyes with tiny hands and watched him as he passed directly above us at about two I looked back, as did the girl remaining beside me. The soaring volpla swiftly beating wings. I saw one of the male volpla's planes open a The doves separated and began to zigzag down the valley. The volpla did lower than the bird he was after, then swept up and intercepted the bird's crossward flight. plummeted to a hillside. The volpla landed gently atop the hill and The volpla beside me danced up and down shrieking in a language all her him. Their lavish affection held him up for a time, but eventually he strutted in like every human hunter. They were raptly curious about the bird. They poked at it, marveled at its feathers and danced about it in an embryonic rite of the hunt. But Later, I shared a small piece of the meat in their feast. They were gleeful and greasily amorous during the meal. When I had to leave, it was dark. I warned them to stand watches, keep the fire burning low and take to the tree above if anything approached. The male walked a little away with me when I left the fire. I said again, "Promise me you won't leave here until we've made you his wonder. "You say we came from there?" "The old ones of your kind told me so. Didn't they tell you?" "I can't remember any old ones. You tell me." "The old ones told me you came long before the red men in a ship from the stars." Standing there in the dark, I had to grin, visioning the

<question>:
What motivated the narrator to design the Volpla origin story as he did?

<options>:
A He enjoyed creating backstories for the creatures as part of the stories he told them
B He did not want the creatues to feel like they did not have a rich history
C The Volpla asked him to tell them their history, and when they guessed they were from elsewhere, he ran with it
D Making them think they were aliens was part of preventing any traceable ties between them and himself

<answer>:

D