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

<passage>:
Walsh's madness—murder-madness—when he ordered Major Polk to scan the planet for a guy named Joe. November 1952. Extensive research did not uncover any evidence that the U.S. copyright on this publication was renewed.] Colonel Walsh had a great sense of humor. I hated his guts ever since we went through the Academy together, but he had a great sense of humor. For example, he could have chosen a Second Looie for the job on Venus. "The man is a trader of sorts. Rather intelligent." He paused, then added, "For a native, that is." I had never liked Walsh's attitude toward natives. I hadn't liked the way he'd treated the natives on Mars ever since he'd taken over there. Which brought to mind an important point. far. "He's had many dealings with the natives there," Walsh explained. "If anyone can tell us the reasons for the revolt, he can." If Walsh really wanted to know the reasons for the revolt, I could give them to him in one word: Walsh. I had to laugh at the way he called it "revolt." It had been going on for six months now and we'd lost at was just like Walsh to ship me off to a strange place. "Just Joe." "Just Joe?" "Yes," Walsh said. "A native, you know. They rarely go in for more than first names. But then, it should be simple to find a man with a name like Joe. Among the natives, I mean." "I don't know, sir." "A relatively simple assignment," Walsh said. "Can you tell me anything else about this man? Physical appearance? Personal habits? Anything?" Walsh seemed to consider this for a moment. "Well, physically he's like any of the other Venusians, so I can't give you much help there. He does have a peculiar habit, though." I sighed. "Well, it's not very much to go on." "You'll find him," Walsh said, grinning. "I'm sure of it." about Colonel Leonard Walsh and how he was supposed to be quelling that revolt. Ever since Walsh had taken command, ever since he'd started pushing the natives around, there'd been trouble. It was almost as if the whole damned planet had blown up in our faces the moment he took for. My orders said I was to report to Captain Bransten immediately Joe. Among the natives, I mean. Sure. Oh sure. Real simple. Walsh was about the lowest, most contemptible.... "Skip it," I said. "How do I get to the captain's shack?" "Hello, Joe," he said. "How's it going?" "Not so hot, Joe," the bartender replied. I listened in fascination. Joe, Joe, Joe. So this was Walsh's idea of a great gag. Very funny. Very.... "They steal them," Captain Bransten said abruptly. So Walsh had taken care of that angle too. He does have a peculiar "And the natives are only now becoming acquainted with Terran culture. Lots of enlisted men, you know." I began to get the idea. And I began to appreciate Walsh's doubtful ancestry more keenly. "It's impossible to tell exactly where it all started, of course," Bransten was saying. I was beginning to get angry. Very angry. I was thinking of Walsh "Get to the point, Captain!" I barked. of thing was definitely against regulations, but he submitted when I twinkled my little gold leaf under his nose. Walsh's face appeared on the screen. He was smiling, looking like a fat pussy cat. "What is it, Major?" he asked. "This man Joe," I said. "Can you give me any more on him?" Walsh's grin grew wider. "Why, Major," he said, "you're not having any difficulties, are you?" "None at all," I snapped back. "I just thought I'd be able to find him a lot sooner if...." "Take your time, Major," Walsh beamed. "There's no rush at all." "I thought...." "I'm sure you can do the job," Walsh cut in. "I wouldn't have sent you otherwise." Hell, I was through kidding around. "Look...." "He's somewhere in the jungle, you know," Walsh said. I wanted to ram my fist into the screen, right smack up against those big white teeth. Instead, I cut off the transmission and watched the besides Walsh may have been on the level for the first time in his Captain, the small garrison attached to the Station, and me. I began wondering why Walsh had gone to so much trouble to get rid of me. The job, as I saw it, would take a hell of a long time. It seemed like a silly thing to do, just to get even with a guy for something Or maybe he didn't expect me to come back. The thought hadn't occurred to me before this, and I began to consider it seriously. Walsh was no good, rotten clear through. He was failing at the job of keeping Mars in hand, and he probably realized that a few more mistakes on his part would mean the end of his career with could understand how much that would appeal to Walsh. I tried to figure the thing out sensibly, tried to weigh his good points against his bad. But it all came back to the same thing. A His spirits were always high and he never failed to say the right thing that would give a momentary lift to my own depressed state of mind. He would talk for hours on end as we hacked our way through the jungle. Leonard Walsh. "Yes, yes," he said wholeheartedly. "They joke and they laugh and ... well, you know." I turned rapidly. Joe nodded and kept grinning, a grin that told me he was getting a big kick out of all this. Like a kid playing a game. I faced Walsh again. "Okay, what's it all about, pal?" "Colonel," Walsh corrected me. "You mustn't forget to say Colonel, finality. I waited. I could see he was just busting to tell me how clever he'd been. Besides, there wasn't much I could do but wait. Not with Walsh pointing the stun gun at my middle. "If you mean in miles," I said, looking around at the plants, "we sure have." Walsh grinned a little. "Always the wit," he said drily. And then the smile faded from his lips and his eyes took on a hard lustre. "I'm Joe almost clapped his hands together with glee. He was really enjoying this. Another of those funny Terran games. "You gave me a powerful handicap to overcome," Walsh said. "I suppose I should thank you, really." when you decided to cork off." Beside me, Joe chuckled a little, enjoying the game immensely. "You didn't have to report me," Walsh said. "No? Maybe I should have forgotten all about it? Maybe I should have nudged you and served you orange juice? So you could do it again sometime and maybe blow up the whole damn Academy!" Walsh was silent for a long time. When he spoke his voice was barely audible. The heat was oppressive, as if it were concentrated on this little spot in the jungle, focusing all its penetration on a small, unimportant drama. I could hear Joe breathing beside me. "I'm on my way out," Walsh rasped. "Finished, do you understand?" "The natives," he practically shouted. "They ... they...." Joe caught his breath sharply, and I wondered what Walsh was going to say about the natives. Apparently he'd realized that Joe was a native. Or maybe Joe's knife had something to do with it. "What about the natives?" I asked. "Nothing," Walsh said. "Nothing." He was silent for a while. "A man of my calibre," he said then, his face grim. "Dealing with savages." He caught himself again and threw a hasty glance at Joe.

<question>:
What was Captain Walsh's main motive behind putting the narrator on the mission?

<options>:
A Walsh sought revenge against the narrator.
B Walsh wanted to test the narrator's intelligence.
C Walsh wanted the narrator fired from his position.
D Walsh wanted to test the narrator's competency.

<answer>:

A