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

<passage>:
radioactivity. with it,” his father said. “It wasn’t that strong. Still, it doesn’t take so very much radioactivity to make two ounces of an isotope quite powerful—and quite deadly. I only hope whoever “Let’s just say he—or both of them—have enough training in the subject to know how to handle that isotope safely,” Mr. Taylor said. “But, Dad,” Eddie wondered, “what could they do with it?” “They could study it,” his father explained. “At least, they could send it somewhere to be broken down and studied. Being a new isotope, the formula is of great value.” “Be right there,” Eddie said. Then, remembering you want, Eddie,” Mr. Taylor said, “as long as you take good care of it. You figured out where you can find some uranium ore?” asked if he could go over and visit with Teena Teena answered his knock. “Good evening, Mrs. Ross,” Eddie said. “I—I hope I’m not making a pest of myself.” He looked around for Mr. Ross, but Teena’s him at the table, either. “You’re never a pest, Eddie,” Mrs. Ross assured him. “I was going to call your mother in a little while about that newspaper write-up.” over it,” Teena’s mother said. “Oh, yes,” Eddie affirmed. “He was the one who ordered the isotope.” “What’s an isotope?” Teena asked. “I’m not sure I know, either,” Mrs. Ross said. “Maybe we could understand more of metal clamps. It could start cavities. Finished, Eddie went out to breakfast. “Good morning, dear,” his mother greeted him, handing him a plate of eggs. “Hi, Mom,” Eddie said. “Gotta hurry. Big day today.” from the table, “I’d better be getting over to school. I’m expecting to receive shipment of a new radioisotope today.” The very word excited Eddie. In fact, anything isotopes—pronounced eye-suh-tope . You atomic-science department at Oceanview College without picking up a little knowledge along the way. Eddie knew that a radioisotope was a material which had been “cooked” in an atomic reactor until it was “hot” with radioactivity. radioisotope. Much of his father’s work at Oceanview College was of a secret nature. Eddie had learned not to ask questions about it. His father usually volunteered any information blow up.” “Boy, that sounds dangerous,” Teena said. “Well, they know just how to do it,” Eddie replied. them. Remember to switch it off when you’re not actually using it.” “I will,” Eddie promised. He had forgotten “Aren’t the rays dangerous?” Mrs. Ross lighter by contrast. Maybe both. “Oh, guess I’ll stop by and see if Teena tried to make it sound as though he would be doing Teena Ross a big favor. After all, she was only a girl. Eddie didn’t figure a girl would make a very good uranium prospecting soaks up water.” 40 “My, that’s interesting, Eddie,” Mrs. Ross counter. But maybe you’re too busy.” That’s how to handle it, Eddie thought. Don’t act anxious. Let Teena be anxious. Then maybe she’ll even offer to bring along isotopes, the whole world is going to be improved. You’ve heard of radiocobalt for curing cancer. Well, that’s an isotope. They make it “What kind was the one stolen from the college today?” Teena asked. “Dad didn’t say exactly,” Eddie answered, Eddie went inside and followed Teena to the kitchen. He felt triumphant about the “except he did say that if whoever took it even the mild isotopes are deadly if they’re not handled right.” Eddie nodded. It was even more serious than its threat of danger to anyone who handled it carelessly. It was a new isotope—a secret isotope. His father hadn’t said whether it had been developed for curing things or for destroying things. But many radioisotopes “Hello, Eddie,” Mrs. Ross said, coming into it depended on how they were used. Eddie assumed that anyone who would stoop to stealing isotopes more than likely the kitchen. “Looks like Teena put you to work.” “She always does, Mrs. Ross,” Eddie said, out all right,” Teena’s mother said. “So do I,” Teena agreed. Eddie glanced at the kitchen clock. “Oh, would be interested in their ability to destroy atomic-science department. In fact, their parents were close friends, also. Teena’s father “Oh, we’re glad you did, Eddie,” Mrs. Ross said. “I’m afraid too few of us know anything “That’s right, Mrs. Ross,” Eddie agreed. “People should talk more and read more about it. After all, this is an atomic age. We might as about this atom business.” “Oh, I don’t really mind, Mrs. Ross,” Eddie said. “Besides, Teena’s making sandwiches to take with us.” doing dishes.” Eddie,” she said, “but I wouldn’t quite know how to go about feeding an atom.” “Or greasing one,” Teena added. Eddie laughed. “I sure wouldn’t want the too.” “Don’t go too far out from town,” Mrs. Ross cautioned, as Eddie picked up the Geiger counter. “And stick near the main roads. You know the rules.” “We sure do, Mrs. Ross,” Eddie assured her. “And we’ll be back early.” table, leaned over, and gave both Teena and Mrs. Ross a kiss on the cheek. “Eddie was telling us about atoms,” Teena’s did everything go at the plant today?” “Not so good,” Teena’s father said tiredly. “In fact, not good at all.” Teena. Doesn’t seem to be anything out here.” back at Teena’s house. They worked a while on a new jigsaw puzzle Teena had received on a recent birthday. Then Eddie said good-by “Hello, son,” he said. He didn’t even ask whether Eddie had discovered any uranium ore that day. Always before, he had shown genuine interest in Eddie’s prospecting trips. “Dad,” Eddie said anxiously, “what—what’s “What’s wrong, Dad?” Eddie prompted. “Or can’t you tell me?” Mr. Taylor leaned back. “Quite a bit’s wrong, Eddie,” he said, “and I guess there’s no reason why I shouldn’t tell you. It’ll be in “Eddie, you remember me mentioning this morning about that radioisotope shipment I was expecting today?” “What does that mean, Dad?” Eddie asked, puzzled. “The delivery truck arrived at the school CHAPTER TWO At the moment, Eddie didn’t pry for further information on the theft of the valuable radioactive isotope. His father had plenty on his mind, as it was. The main information was in the evening Taylor said, “but I’m afraid this is going to stir up quite a bit of trouble.” “It wasn’t your fault, was it, Dad?” Eddie radioactive if improperly handled.” “But—but wasn’t it in a safe container?” Eddie asked. 29 “Kid?” His father smiled thinly. “We don’t think it was any kid, Eddie. Not by a long shot. The whole thing was carefully planned “That’s unlikely, son,” Mr. Taylor said. “Believe me, it was no common theft. Nor were the thieves ordinary thieves. That isotope “Power?” Eddie said. “Boy, it must have been a strong isotope.” He knew that the

<question>:
How does Teena find out about radioactivity?

<options>:
A Eddie teaches her about radioactivity during their hike to Cedar Point.
B Eddie teaches her about radioactivity while he helps her finish doing the dishes.
C Eddie teaches her about radioactivity when he is explaining the dream he had about Cedar Point.
D Eddie teaches Teena and her mother about about radioactivity after the news gets out about Mr. Taylor’s isotope being stolen.

<answer>:

D