In this task, you're given an article, a question which often contains a blank and four options (associated with "A", "B", "C", "D"). Your task is to find the correct answer (from the given options) for the question from the given article and return one of the options from "A", "B", "C", and "D". Do not generate anything else apart from one of the following characters: "A", "B", "C", "D". There is only one correct answer for each question.
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Question: Article: Trees are useful to man in three important ways: They provide him with wood and other products; they provide him shade;. and they help to prevent droughts and floods. Unfortunately, in many parts of the world, man has not realized that the third of these services is the most important.In his eagerness to make money from trees, he has cut them down in large numbers, only to find that without them he has lost the best friends he had. And besides, he is usually too careless to plant and look after new trees. So the forests slowly disappear. This does not only mean that man will have fewer trees. The results are even more serious: for where there are trees, their roots break up soil allowing the rain to sink in and also bind the soil, thus preventing it from being washed away easily;but where there are no trees, the rain falls on hard ground and flows away, causing floods and carrying away the rich top-soil. When the top-soil is gone, nothing remains but worthless desert. Two thousand years ago,a rich and powerful country cut down its trees to build warships, with which to gain itself an empire .It set up the empire, but, without its trees, its soil became poor and grew weak. When the empire fell to pieces, the home country found itself faced by floods and starvation .
Question: The most important service of trees to man is that _ .
Options: (A) they give them wood and other products (B) they give them shade (C) they help him prevent droughts and floods (D) they help him made money

Answer: C

Question: Article: Some years ago industries had more freedom than they have now, and they did not need to be as careful as they must today. They did not need to worry a lot about the safety of the new products that they developed. They did not have to pay much attention to the health and safety of the people who worked for them. Often new products were dangerous for the people who used them; often conditions in the work place had very bad effects on the health of the workers. Of course sometimes there were real disasters which attracted the attention of governments and which showed the need for changes. Also scientists who were doing research into the health of workers sometimes produced information which governments could not ignore. At such times, they inquire into the causes of the disasters or the problems. New safety rules were often introduced as a result of these inquiries; however. the new rules came too late to protect the people who died or who became seriously ill. Today many governments have special departments which protect customers and workers.In the U.S, for example, there is a department which tests new airplanes and gives warnings about possible problems. It also makes the rules that aircraft producers must follow. Another department controls the foods and drugs that companies sell. A third department looks at the places where people work. and then reports any companies that are breaking the laws which protect the health and safety of workers. Of course, new government departments and new laws cannot prevent every accident or illness. but they are having some good results. Our work places are safer and cleaner than before. The planes and cars which we use for travel are better. Producers are thinking more about the safety and health of the people who buy and use their products.
Question: The main topic of the passage is _ .
Options: (A) conditions in the work place (B) the freedom of industries in the past (C) changes in industrial production (D) the safety and health of workers and customers

Answer: D

Question: Article: (1)Needed: Full time secretary position available. Applicants should have at least 2 years experience and be able to type 60 words a minute. No computer skills required. Apply in person at United Business Ltd., 17 Browning Street, Leeds. (2) Are you looking for a part time job? We require 3 part time shop assistants to work during the evening. No experience required; applicants should between 18 and 26. Call 366 - 76564 for more information. (3) Computer trained secretaries: Do you have experience working with computers? Would you like a full time position working in an exciting new company? If your answer is yes, give us a call at 457-896754 (4) Teacher Needed: Hania's Playschool needs 2 teacher/trainers to help with classes from 9 a.m. to 3 p.m. Applicants should have appropriate licences. For more information visit Hania's Playschool in Leicester Square (5) Part Time work available: We are looking for retired adults who would like to work part time at the weekend. Responsibilities include answering the telephone and giving customer's information. For more information contact us by calling 345-674132 (6) University positions open: The University of Bristol is looking for 4 teaching assistants to help with homework correction. Applicants should have a degree in one of the following: Political Science, Religion, Economics or History. Please contact the University of Bristol for more information.
Question: If you want to be full time secretary, you can contact the company by _ .
Options: (A) writing letters (B) making telephone calls (C) going there personally (D) sending emails

Answer:
C