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 ancient rule was sink or swim—swim in the miasma of a planet without spaceflight, or sink to utter destruction! me. He's red-headed and has a face that makes him look about ten. An intelligent runt like me. He said what I expected. "Mia, do you want to go partners if we can get together when we get down?" I guess he thought that because we were always matched on study I liked him. Well, I did when I wasn't mad at him, but now I had that crack come back alive." It wasn't fair, but it was a good crack and he went back to his place without saying anything. My name is Mia Havero. I'm fourteen, of course, or I wouldn't be telling this. I'm short, dark and scrawny, though I don't expect that scrawniness to last much longer. Mother is very good looking. In the leave that way, but George thinks it's fun to be a hot pilot. Thinking it over, I was almost sorry I'd been stinking to Jimmy D. He's the only competition I have my own age. The trouble is, you don't go partners with the competition, do you? Besides, there was still that crack about being a snob. Planets make me feel wretched. It's no game we play. When we turn fourteen, they drop us on the Don't think I was helpless. I'm hell on wheels. They don't let us grow from decaying mentally and physically, and this is it. And it helps to keep the population steady. I began to check my gear out—sonic pistol, pickup signal so I could be found at the end of the month, saddle and cinches, food and clothes. Venie Morlock has got a crush on Jimmy D., and when she saw me start getting ready to go, she began to check her gear, too. At our next landing, I grabbed Ninc's reins and cut Venie out smoothly. It didn't have anything to do with Jimmy. I just couldn't stand to put off the bad moment any longer. nothing from nobody, especially him, and he doesn't take nothing from nobody, especially me. So we do a lot of fighting. identify. One of the other outriders came easing by then. I suppose they'd been watching us all the while. He called to the hard man. "He be awfully small, Horst. I doubt me a Losel'd even notice him at all. We mought as well throw him back again." The rider looked at me. When I didn't dissolve in terror as he I looked down at the plodding, unhappy creatures they were driving didn't trust the crazy kid not to shoot. After twenty minutes of easy riding for us and hard walking for the I even convince myself that I'm hell on wheels. hadn't seemed smart enough to count to one, let alone do any work. But it relieved me. I thought they might have been eating them or something. Horst and his buddies assumed I was a boy. It wasn't flattering but I decided I'd not tell anybody different until I found what made the felt a blind urge to get away, and when I reached the edge of town, I whomped Ninc a good one and gave him his head. I let him run for almost a mile before I pulled him down to a walk For one thing, people can't be depended on to talk about the things you want to hear. For another, you're likely to get caught. Ask somebody? Who? Make the mistake of bracing a fellow like Horst and you might wind up with a sore head and an empty pocket. The best thing I could think of was to find a library, but that might be a job. idiot stutter-fingered stupidity at the controls. As it skidded by me his wife and their three children. The kids were running around and playing, and one of them ran close to the high-walled pen. His father came and pulled him away. The kids weren't to blame for their parents, but when one of them said nice little girl, and to get rid of the kid, she sent her on a phony errand into the deep dark woods at nightfall. I could appreciate the poor girl's position. All the little girl had to help her were the handkerchief, the comb and the pearl that she had inherited from her dear dead mother. But, as it turned out, they were just enough to defeat nasty old Baba Yaga and bring the girl safely home. I wished for the same for myself. couldn't see far into the dark. A voice there said, "I'll be damned if I'll take another day like this one, Horst. We should have been here hours ago. It be your fault we're not." Horst growled a retort. I decided that it was time for me to leave the campfire. I got up and eased away as Horst and his men came up to the fire, and cut back to where Ninc was parked. I grabbed up my blankets leave. I never got the chance. I was just heaving the saddle up on Ninc when I felt a hand on my shoulder and I was swung around. "Well, well. Horst, look who we have here," he called. It was the one who'd made the joke about me being beneath the notice of a Losel. He was alone with me now, but with that call the others would be up fast. behind and pinned my arms to my side. I opened my mouth to scream—I have a good scream—but a rough smelly hand clamped down over it before I had a chance to get more than a lungful of air. I bit down hard—5000 lbs. psi, I'm told—but he didn't let me go. I started to kick, but Horst jerked me off my feet and dragged me off. When we were behind the pen and out of earshot of the fire, he stopped dragging me and dropped me in a heap. "Make any noise," he said, "and I'll hurt you." for that. "I ought to club you anyway," he said. The one I'd dropped the saddle on came up then. The others were putting the animals in the pen. He started to kick me, but Horst stopped him. "No," he said. "Look through the kid's gear, bring the horse and what we can use." The other one didn't move. "Get going, Jack," Horst said in a menacing tone and they stood toe to toe for a long moment before Jack finally backed down. It seemed to me that Horst wasn't so much objecting to me being kicked, but was rather establishing who did the kicking in his bunch. But I wasn't done yet. I was scared, but I still had the pistol under my jacket. Horst turned back to me and I said, "You can't do this and get away with it." He said, "Look, boy. You may not know it, but you be in a lot of trouble. So don't give me a hard time." jacket. "Every time you open your mouth you shout that you be off one of the Ships," Horst said. "That be enough. They already have one of you brats in jail in Forton." "I can't remember," he said. "But it be coming to me. Hold on." I waited. Then suddenly my arm was hit a numbing blow from behind Horst stalked over and got the signal. He dropped it on the ground and said in a voice far colder than mine could ever be, because it was remember is a flash of pain as his fist crunched against the side of my face and then nothing. Brains are no good if you don't use them.

<question>:
Explain Mia’s reasons for referring to herself as “hell on wheels.” What is an example of this?

<options>:
A Mia is fast. An example of this is when Mia rode Ninc away from the free breeders as fast as she could.
B Mia is frightened. An example of this is when she was approached by Horst and his gang for the second time, which scared her to the point of losing control of her mission.
C Mia is mean. An example of this is when she refused to agree to partner up with Jimmy after they returned from their mission.
D Mia is tough. An example of this is when she was able to strong arm her way out of trouble with Horst and his gang.

<answer>:

D