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.

[Q]: Article: Exercise is one of the few factors with a positive role in long-term control of body weight. Unfortunately, that message has not gotten through to the average American, who would rather try switching to "light" beer and low-calorie bread than increase physical efforts. The Centers for Disease Control, for example, found that fewer than one-fourth of overweight adults who were trying to lose weight said they were combining exercise with their diet. In rejecting exercise, some people may be discouraged too much by caloric-expenditure charts; for example, one would have to quickly walk hard three miles just to work off the 275 calories in one delicious Danish pastry . Even exercise professionals accept half a point here. "Exercise by itself is a very tough way to lose weight," says York Onnen, program director of the President's Council on Physical Fitness and Sports. Still, exercise's supporting role in weight reduction is vital. A study at the Boston University Medical Center of overweight police officers and other public employees confirmed that those who dieted without exercise regained almost all their old weight, while those who worked exercise into their daily routine maintained their new weight. If you have been sedentary and decide to start walking one mile a day, the added exercise could burn an extra 100 calories daily. In a year's time, assuming no increase in food intake, you could lose ten pounds. By increasing the distance of your walks gradually and making other dietary adjustments, you may lose even more weight.
Question: What is said about the average American in the passage?
Options: (A) They tend to hate "light" beer and low-calorie bread. (B) They usually ignore the effect of exercise on losing weight. (C) Most of them were combining exercise with their diet. (D) They know the actors that play a positive role in keeping down body weight.
[A]: B

[Q]: Article: Water is of vital importance in a healthy diet and lifestyle. There are many health benefits of drinking water .It helps get _ out of our systems. It aids in the delivery of oxygen and nutrients .In fact, nearly every system in our bodies depends on water for proper functioning .But how can we tell whether the water we're drinking is healthy? As to tap water, it's relatively easy .If your water comes from a governmental source , the suppliers are required by law to provide annual water quality reports .If you have a well, you can have an authorized lab test your water .It may cost $100 or more, but it's a small price to pay for peace of mind . When it comes to bottled drinking water, it can be more difficult to know what you're getting .Start by checking the label or the bottle cap. Some may tell you that the water comes from a governmental source or "community water system", which means tap water .If the label doesn't give any information, you can call the bottler and ask .But don't be surprised if you get the runaround and are transferred to several different departments .Some states have a bottled water program that tracks bottled drinking water and can tell you the origin of the water as well as other information . Safe and healthy drinking water has become big business .Thousands of companies are competing for your hard earned cash , and some are not always honest about what their products offer .The initial investment in a home drinking water filtration system can seem expensive at first , but over time , it is usually less expensive than bottled drinking water .And with a water filter , you at least know where the water you drink comes from and how it is treated . Before going out and spending your hard earned money on bottled drinking water , it's a good idea to do some research .You're likely to find that a drinking water filtration system or purifier is a healthier choice and provides the best value as well .
Question: By using a water filter, people _
Options: (A) can drink water without fearing that the water isn't treated (B) will have to pay more money eventually than if they just drink bottled water (C) will know if the water company is honest or not (D) can check the quality of the water by themselves.
[A]: A

[Q]: Article: Watch out, Yahoo.There's a search engine out there with super speed and accuracy.It's really cool. Google is the Web's largest search engine.In just two years it has gained a fame for surprising speed and accuracy, sending exactly what you're looking for in a second.The site now does this 40 million times a day--a number achieved without spending a penny on a TV or newspaper ad. Google doesn't need them. In the past six months alone, the site has won a Webby (the online version of the Oscar) for technical excellence, sets a new record for search engines by indexing a billion Web pages. Yahoo still has 10 times the audience, but Google consistently ranks first in customer satisfaction: 97% of users find what they're looking for most or all of the time."You see people smile when they use it, like they've found something no one else knows about," says Danny Sullivan, editor of an online newsletter. No one is smiling more than Larry Page, 27, and Sergey Brin, 26, who seem certain to become billionaires when the company goes public, probably sometime next year.They make a great comedy.When they first met as PhD students, the pair say, they found each other horrible--"I still find him horrible," adds Brin--but were driven together by a computer science project aimed at coming up with better ways of searching the Web. The idea behind Google is that traditional search engines are stupid.They think the connection is based on repetition; if you type in a request for Tiger Woods, say, you'll get websites listed according to how many times those words appear.Not only is this no guarantee of quality, but it's also open to bad use.If you own a Tiger fan site and want to lead more people to it, simply type his name thousands of times in the site's source code.
Question: Which of the following wins greater customer satisfaction?
Options: (A) Yahoo. (B) Google. (C) Page. (D) Brin.
[A]:
B