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I'm taking a test and have to guess the right answer to the question after the article. Article: Artificial flowers are used for scientific as well as for decorative purposes. They are made from a variety of materials, such as wax and glass, so skillfully that they can scarcely be distinguished from natural flowers. In making such models, painstaking and artistry are called for, as well as thorough knowledge of plant structure. The collection of glass flowers in the Botanical Museum of Harvard University is the most famous in North America and is widely known throughout the scientific world. In all, there are several thousand models in colored glass, the work of two artist-naturalists, Leopold Blaschka and his son Rudolph. The intention was to have the collection represent at least one member of each flower family native to the United States. Although it was never completed. It contains more than seven hundred species representing 164 families of flowering plants, a group of fruits showing the effect of fungus diseases, and thousands of flower parts and magnified details. Every detail of these is accurately reproduced in color and structure. The models are kept in locked cases as they are too valuable and fragile for classroom use. Question: Which of the following is the best title for the passage? Options: A: An Extensive Collection of Glass Flowers B: The Lives of Leopold and Rudolph C: Flowers Native to the United States D: Material Used for Artificial Flowers
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A

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I'm taking a test and have to guess the right answer to the question after the article. Article: When you watch TV programs about wild animals, it is surprising to see how an antelope can escape a lion's attack. In the wilderness, everyone has a stunt. Even plants have their own ways of fighting off enemies. Over millions of years of evolution, plants have developed a unique defence system. Chemicals are wildly used for survival. By making their leaves, flowers, roots and fruits distasteful or poisonous to enemies, plants can fight back. One such plant is the Golden Wattle tree. The British scientist David Cameron has found when an animal eats the tree's leaves, the amount of poison increases in the other leaves. "It's like the damaged leaves telephoning the others telling them to fight together against the enemy, " he said. The tree also sends defence messages to neighboring plants by giving out a special smell. Golden Wattle trees in the surrounding 45 meters will get the message and produce more poison within 10 minutes. Now, if an enemy eats too many of the trees' leaves, it will die. Every species of plant or tree is good at the production of a particular set of chemicals. A _ that can safely eat the leaves of one tree may be poisoned by its neighbor. In this way, plants have developed not only individual defence system, but also shared it with others. This makes it impossible for a single animal to destroy even a small area of forest. Question: According to the study, if one Golden Wattle tree is attacked by animals, it can _ . Options: A: tell other trees to protect it B: produce more poison within 10 minutes C: send defence messages to the neighboring plants D: kill the animals with its leaves
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C

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I'm taking a test and have to guess the right answer to the question after the article. Article: About ten days ago, I started to write an article on a parenting subject. I wish I could publish it. But in the days between the writing and the publishing, an unfortunate thing happened. My article discussing the lost art of walking to school was finished three days before an 8-year-old boy named Leiby Kletzky in Brooklyn tried to walk home for the first time from his summer camp. Today I will not describe the details around the Leiby Kletzky killing, except to point out the obvious fact that it terrified every parent who heard about it. What happened this week is one of the biggest reasons why so few kids walk to school now. In theory, walking to school is a wonderful habit, which can teach children independence, introduce them to their neighborhoods and encourage physical activity. It's better for the environment, eases traffic and is just generally the most fun choice. However, many of us parents don't allow the habit, mentioning the problems of logistics and distance. What we talk about less often is our fear. Maybe that's the heart of the matter. Indeed, it is an understandable reaction. But it is not a necessary one. What happened this week is extremely rare. Separating out the fact from the feelings is a difficult thing to do. Very few of us were ready to breathe easy about sending our young children off by themselves no matter what happened. We are far more worried now. The good news is that we don't have to be. Those children who go to school by themselves can be escorted when the neighborhood forms a "walking school bus". That's when designated parents walk with groups of children from home to school. With the benefit of safety, it allows kids to enjoy one of the joys of childhood. It's an easy, affordable choice. A walking school bus is a good idea that parents thought of. Proper measures are usually out there. Sometimes all they take is a little cooperation and some courage. Question: What is the author's attitude towards walking school bus? Options: A: Doubtful. B: Supportive. C: Worried. D: Changing.
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B