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

<passage>:
Ro moved cautiously. He knew the jungles of Mars well, knew the mouths of the Droo, the cannibal plants. And others there had been, some friends of his, who had become game for beasts of prey, or been Ro was returning from the north. He had seen the great villages of For a long moment Ro studied the approaching creatures. Then he gasped Ro exclaimed his surprise, then his rage. His handsome face was grim as on his prey to notice Ro at first, and when he did, it was too late. With hardly a glance at his fallen foe, Ro ran on to meet the girl. She Finally Na lifted her beautiful head. She looked timidly at Ro, her face a mask of respect. The young Martian tried to be stern in meeting her gaze, as was the custom among the men of his tribe when dealing with women but he smiled instead. "I have traveled far to the north," answered Ro simply, "and seen many in strange garb from the neck down, even to coverings on their feet. They made signs of peace—with one hand only, for they carried weapons of a sort in the other. And the men of our tribe made the stones. Then the white men spoke men signaled that they could not understand. The white men smiled, and "There were two more white ones who came from the sphere. One was a woman with golden hair, and the other, a man of age, with hair like silver frost. "There was a great feast then, and our men showed their skill at throwing. Then the white men displayed the power of their strange Ro groaned aloud as Na finished her tale. His homecoming was a meeting Ro squared his shoulders and set his jaw. He wiped a hint of tears from "Then there will be more to kill," answered Ro without turning. "They have the weapons of the white ones." "And the white ones, as well. They probably keep them alive to repair Na smiled. Ro was angry, but anger did not make him blind. He would to place. There were no fires, for the Oan were more beast than man and feared flame but Ro could make out four prone figures. They appeared to "You say they came from a place called Earth?" Ro asked Na in wonder. into the valley. When he had rescued the white ones, he would learn The darkness settled quickly. Soon Ro could barely make out the girl's clasped on Na's wrist. "All men will know now that you are the mate of Ro," he whispered. And he kissed her, as was the custom of his tribe when a man took a wife. prolonged farewell. They would be together soon—on the far side of the cliff—if all went well. In his left hand and under his armpit Ro carried stones. They were of a guard. He was coming straight at Ro. The young Martian shrank back. Like a phantom, Ro arose from his crouch. The rat man was startled, Breathing more easily, Ro moved on. He reached the edge of the small heaps. They would be the slumbering rat men. Ro suppressed an urge to thoughts. ' "Be still. I've come to free you." And then, because it mind. Waves of thought that took no definite form held a plain meaning. His groping hands found the girl's arm and moved down to the strips of Ro was more confident as he moved to untie the others. He worked more When they were ready, Ro signaled the four white people to follow him. something to one of the men. Ro turned and glared at her through the shadows. The progress they made was slow, but gradually the distance between "She is the one I have chosen for my mate," Ro answered. The white girl was silent. They traveled quite a distance without communicating. Each was busy with his own thoughts. to rescue us?" "With your help I will avenge the death of my father and brothers and the men of my tribe." Ro's body tensed and quivered. A low growl issued from deep in his straight as he prepared to meet the young Martian's attack. Ro struck his foe head on. They went down in a frenzied bundle of fury. The rat man's tail lashed out to twist around Ro's neck. With frantic strength, Ro tore it away before it could tighten. and tightened. Over and over they rolled. The Oan clawed urgently at the Martian's air that would give it life. But Ro's hands were bands of steel, tightening, ever tightening their deadly grip. Ro dismounted the limp body. His face wore a wildly triumphant smiled as she recognized Ro. The young Martian breathed a sigh of Ro gathered the girl in his arms. He spoke softly to her to help her When she had recovered from her shock, the small group traveled on. Ro Ro smiled. the white ones. The man with the silver hair seemed very old and weak, but very wise. The other men had hair as black as any Martian's, but their skin was pure white. They were handsome, Ro thought, in a barbaric sort of way. One was lean and determined, the other, equally determined, but stouter and less impressive. Ro then centered his attention on the girl. Her Ro introduced himself and Na. "You have seen what it is like here," Ro answered. "As for 'year,' I simple to transmit or receive thoughts from anyone. A mere matter of concentration. We—who speak different tongues—understand each other because of action we have in mind as we speak. We want the other to Ro sighed. Ro slipped his arm about Na's shoulder and drew her closer. With their Ro awakened with the dawn. He was startled to find that Na had left his Mars, and clusters of wild berries and grapes. well provided for." "You will make no mate at all," Ro said sternly, "and there will be no noticed, too, that Grimm was seeing the same thing and seemed annoyed. Ro smiled. These young white men were no different than Martians where a girl was concerned. "The Oan are cowards," Ro answered. "They are brave only because they Ro sprang to his feet to tower above the man. His handsome face was Grimm climbed to his feet and backed away. Ro advanced on him, his The old man also rose. He placed a restraining hand on Ro's arm. "He's lying," said Ro with his thoughts. Ro turned quickly. Ro fell silent. He walked to the mouth of the cave and stared out. When He repeated his plan to the others. "But they'll kill her," gasped Charlotte. "She will be a woman alone," said Ro. "The Oan prefer to capture women when they can." Ro laughed. can kill each other. But not until then." Grimm brushed himself off as he got to his feet Carlson turned to Ro. When they had detailed their plan, the party left the cave. Ro led them "We leave you here," said Ro to the professor. "Na will lead you to the Ro looked at Na for a long moment before they parted. He grew very "You would have liked a more tender goodbye with Charlotte," Ro said to Carlson straightened. He weighed Ro's words before answering. Finally he said, "I didn't want to make trouble. It was a bad time, and senseless, besides. Charlotte and I are planning to be married when we return to America. It's not as though Grimm was still in the running. I'm sure he'll see reason when we tell him. It's foolish to be enemies." "Why don't you take her for your wife here on Mars? That would end the trouble completely." Ro seemed puzzled, then he laughed. "Last night I thought that we on Mars are backward. Now I'm not so sure. When we find our mates here, we take her. There is no one to speak of 'legal' or 'ceremony.' After all, it's a personal matter. Who kiss and a promise?" He bent back to his work chuckling. "I could argue the point," Carlson laughed. "I could tell you about a place called Hollywood. Marriage and divorce is bad enough there. Under your system, it would really be a mess. But I won't say anything. Here Ro didn't speak. He didn't concentrate and transmit his thoughts,

<question>:
In what sense does Ro relate to the white young men?

<options>:
A In their difficulty understanding signals that women send them.
B In their eagerness to enter into combat situations.
C In their need to establish themselves as the more dominant male through physical prowess.
D In their attachment to and rivalry over women.

<answer>:

D