In this task, you're given an article, a question which often contains a blank, four options (associated with "A", "B", "C", "D") and the answer to that question. Your task is to classify whether the given answer is correct or not by providing "Yes" or "No", based on the article.

[Q]: Article: Many people think walking is a good way to exercise and many fat people are advised to lose weight by walking. In fact, you can do it everywhere. Here's how to prepare for walking: ^Find a pair of shoes. It is easy to find a pair of shoes, but what matters most is comfort. ^Check your shape. The following tips will help you stay comfortable and get the most out of your walk: * Stand up straight. Imagine a string pulling you up from the center of the top of your head. Let that string pull you up as straight as possible. Relax your shoulders. * Look ahead. Keep your neck straight and your head held high to avoid unnecessary strain to your neck and shoulders. If you have to look down to see where you're going, lower your eyes, not your head. * Move your arms. Bend your elbows and let your arms swing naturally at your sides. You'll burn up to 15 percent more calories by keeping your arms moving. ^Stay safe walking is one of the safest activities you can do. Still, it's wise to take a few precautions . * If you're walking at night, wear a piece of reflective clothing. * When the weather's warm, be sure to drink a tall glass of water before you set out and another when you return. * If your path is rough, protect your ankles. Wear a comfortable elastic bandage for support, and keep your eyes focused on the path.
Question: You are advised to _ to see where you are going during walking.
Options: (A) lower your eyes (B) lower your head (C) bend your back (D) look straight
Asnwer: A
[A]: Yes

[Q]: Article: A desert is a beautiful land of silence and space. The sun shines, the wind blows, and time and space seem endless. Nothing is soft. The sand and rocks are hard, and many of the plants even have hard needles instead of leaves. The size and location of the world's deserts are always changing. Over millions of years, as climates change and mountains rise, new dry and wet areas develop. But within the last 100 yeas, deserts have been growing at a frightening speed. This is partly because of natural changes, but the greatest makers are humans. Humans can make deserts, but humans can also prevent their growth. Algeria Mauritania is planting a similar wall around Nouakchott, the capital. Iran puts a thin covering of petroleum on sandy areas and plants trees. The oil keeps the water and small trees in the land, and men on motorcycles keep the sheep and goats away. The USSR and India are building long canals to bring water to desert areas.
Question: In this passage, "needles" refers to _ .
Options: (A) small, thin pieces of steel. (B) long, thin pieces of branches. (C) small pointed growth on the stem of a plant. (D) small, thin pieces of sticks.
Asnwer: C
[A]: Yes

[Q]: Article: prefix = st1 /West Virginia--Public schools are using a dance video game to help get students in shape. In these schools, students are often told to turn off their video games and get some exercise. The schools have found a new way for their students to work out while playing a new video game. West Virginiais one of the heaviest states in the country. About half of its fifth-graders are considered to be overweight, and their parents are worried about that. To get them moving on a healthier path, the state's public schools are using a video game called "Dance Dance Revolution". To use the game, players should stand on a special mat in front of a TV screen. Following arrows on the screen, players must move their feet to the specific symbols on the mat. Players must move quickly, touching symbols on the mat at just the right time. With each song, they get more exercise. "It we can get children to change their behavior at a young age, they will hopefully grow up to be healthy and active adults," said Carl Callison of Mountain State Blue Cross, a health care company. West Virginiais ranked among the top three heaviest states. About a third of West Virginians are considred to be obese. Even more are considered to be overweight. Extra weight can lead to serious health problems such as high blood pressure, diabetes, some cancers, and many other health issues. "One out of three children born in West Virginia today will have diabetes by the time they grow up," said Nidia Henderson, a manager for the public employees' insurance program. "That's a terrible thing and not acceptable." All ofWest Virginia's 157 middle schools are using the video game. School officials hope that all public schools in the state will use the game within the next three years. However, officials emphasize that the game is not meant to _ physical education and health classes. The game will be part of physical education classes and after-school programs.
Question: Why do public school in West Virginiadevelop "Dance Dance Revolution"?
Options: (A) Because most of students don't like dancing. (B) Because it can help students get a better shape. (C) Because losing weight is necessary to students. (D) Because it can make students'activities colourful.
Asnwer: D
[A]:
No