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

<passage>:
like the echo of a death cry slowly floating back over the dead body of the creature that uttered it. I dropped behind a fragment of the rag-cliff. A shot barked out angrily. Splinters of the rock crazed the morning air. Every boy should be able to whistle, except, He seemed a very little boy to be carrying so large a butterfly net. He He came whistling. All little boys whistle. To little boys, whistling this particular little boy's whistling. Or, rather, there were two The first was that he was a Martian little boy. You could be very sure which I should have thought not very appealing to a little boy. He stopped whistling and he stopped walking, both at the same time, as though he had pulled a switch or turned a tap that shut them off. Then "'The Calm'," he said in a sober, little-boy voice. they had left off. I mean the note he resumed on was the note which followed the one interrupted and the step he took was with the left foot, which was the one he would have used if I hadn't stopped him. I followed him with my eyes. An unusual little boy. A most precisely little boy. When he was almost out of sight, I took off after him, wondering. The house he went into was over in that crumbling section which forms were still occupied, like the one into which the Martian boy had just disappeared. How had it been possible for her to teach, and for him to whistle? realization that youth has slipped quietly away downstream in the middle of the night, and left nothing but frightening rocks of middle "Well? And what did I do now?" interested in who you are. It's the little boy who just went in here that I was interested in. The little Martian boy, I mean." to somewhere else in the house. Nowhere did I see the little boy. I "What about him?" she whispered. little boy went by me a while ago and he was whistling. He whistles me it was the 'Calm' from William Tell. He also told me his mother had hearing. So when I heard this little boy, and saw he was a Martian, and at the little boy when he told me his mother had taught him how to Her eyes were telling me that the little Martian boy wasn't a little Martian boy at all, that he was cross-breed, a little chap who had a "Where's his father?" I asked. "H-he's dead." "I'm sorry. Are you all right? I mean do you get along okay and stiffened angrily and the words that ripped out of her mouth were not coated with honey. "Get the hell out of here, you fool!" even hotter, I turned on my heel and went to the door. I opened it, went out on the top slab step. I turned back to close the door—and looked straight into her eyes. She was crying, but that didn't mean exactly what it looked like it was swinging it with all the strength she possessed. And while I still stared, the door slammed savagely into the casing with a shock that jarred the slab under my feet, and flying splinters from the rotten woodwork stung my flinching cheeks. I shrugged and turned around and went down the steps. "And that is the way it goes," I muttered disgustedly to myself. Thinking to be helpful immediately puts it to use—on you. I looked up just in time to avoid running into a spread-legged man who was standing motionless directly in the middle of the sand-path in dives. And then he stopped chuckling and frowned instead and said complainingly: in the sand and was away. I stood there staring at his rapidly disappearing form for a few moments and then looked back once more at " What? " He nearly leaped out of his chair. I had idly listened to a little half-breed Martian boy whistling part named Harry Smythe. Not finding him wasn't especially alarming. What was alarming, though, was not finding the Earthwoman and her little half-breed Martian son belu tree and set fire to it. Being pitch-like, the gnarled fragments flickering light, and then the knife disappeared as quickly as it had come. "Wahanhk," I said. "The Chief. Take me to him." pointed. "Wahanhk," he said. I watched him slip away. ever lived so long—and doubtless none after him will, either. His "That is impossible," he grunted bitterly. "I would have said so, too," I agreed. "Until this afternoon, that is." "I met her little son," I went on. "A little semi-human boy with other side, a little Martian boy who whistles." mine and if, earlier in the day, I had thought the little boy's face "They disappeared from the shack they were living in," I said. "They went in a hurry—a very great hurry." That one he didn't answer, either. child, either. It's just that I have to talk to her." hanging from one of the ridge poles. His eyes squinted at it for a long moment before he handed it back. "I have never seen this Earthman," he said. rolling out a lively tempo now, a tempo you could put music to. He said at last: "I do not know where the woman is. Nor the child." He looked me straight in the eyes when he said it—and almost before the words were out of his mouth, they were whipped in again on a drawn-back, great, sucking breath. For, somewhere outside, somewhere cheese. "In your teeth, Wahanhk! Right in your teeth!" He only looked at me for another dull instant and then his eyes slowly closed and his hands folded together in his lap. Being caught in a lie tree with her arms down and slightly curled backward around it. "That's considered bad luck," I said. for a ladder to walk under. Or didn't you know?" "Would it make any difference?" She spoke softly, but the words came to I ignored that. "Why did you pull out of that shack? I told you you had nothing to fear from me." whoever it was, I'll get him. I'll get him! " and those who moved to its frenetic jabberings were not dancers any more, but only frenzied, jerking figurines on the strings of a puppeteer gone mad. I looked down again at the woman. "Your little boy and his butterfly But who in the name of God could have the heart to ruin a dream like that? Next day I followed the little boy. He left the reservation in a cheery him without his knowledge and I knew it. I also knew that before long he'd know it, too. And he did—but he didn't let me know he did until we came to the rag-cliffs, those filigree walls of stone that hide the entrance to the valley of the two moons. Once there, he paused and placed his butterfly net on a rock ledge and then calmly sat down and took off his shoes to dump the sand while he waited for me. "Quite, sir." Without another word, he picked up his butterfly net and disappeared along a path that led through a rock crevice. Only then did I allow myself to grin. It was a sad and pitying and affectionate kind of grin. I sat down and did with my shoes as he had done. There wasn't any Several times in the past, there have been men who, bitten with the with the thoroughness of his precise little mind the job he had set himself of finding the killer of his daddy. I took a short-cut over the rag-cliffs and went down a winding, sand-worn path. The temple stones stood out barren and dry-looking, moment I stopped and stared down at the ruins. I didn't see the boy. He was somewhere down there, though, still swinging his butterfly net and, probably, still whistling. I started up once more. I stopped in my tracks from the shock of it. Yes, I knew from whom it had come, all right. But I didn't know why. And then the whistle broke off short. One instant it was in the air,

<question>:
What can be inferred happened to the little boy?

<options>:
A He is shot.
B He kills Harry Smythe.
C He catches butterflies.
D He falls off the cliff.

<answer>:

A