Q: Read the following article and answer the question. Article: Below is a selection from a popular science book. If blood is red, why are veins blue? Actually, veins are not blue at all. They are more of a clear, yellowish colour. Although blood looks red when it's outside the body, when it's sitting in a vein near the surface of the skin, it's more of a dark reddish purple colour. At the right depth, these blood-filled veins reflect less red light than the surrounding skin, making them look blue by comparison. Which works harder, your heart or your brain? This question depends on whether you're busy thinking or busy exercising. Your heart works up to three times harder during exercise, and shifts enough blood over a lifetime to fill a supertanker. But, in the long run, your brain probably tips it, because even when you're sitting still your brain is using twice as much energy as your heart, and it takes four to five times as much blood to feed it. Do old people shrink as they age? Yes and no. Many people do get shorter as they age. But, when they do, it isn't because they're shrinking all over. They simply lose height as their spine becomes shorter and more curved due to disuse and the effects of gravity . Many (but not all) men and women do lose height as they get older. Men lose an average of 3-4 cm in height as they age, while women may lose 5 cm or more. If you live to be 200 years old, would you keep shrinking till you were, like 60 cm tall, like a little boy again?No, because old people don't really shrink!It is not that they are growing backwards--their legs, arms and backbones getting shorter. When they do get shorter, it's because the spine has shortened a little. Or, more often, become more bent and curved. Why does spinning make you dizzy ? Because your brain gets confused between what you're seeing and what you're feeling. The brain senses that you're spinning using special gravity and motion sensing organs in your inner ear, which work together with your eyes to keep your vision and balance stable. But when you suddenly stop spinning , the system goes out... Question: Why do some old people look a little shrunken as they age? Answer: | OPTIONS:
- Their spine is in active use.
- They are more easily affected by gravity.
- They keep growing backwards.
- Their spine becomes more bent.
A: Their spine becomes more bent.

Q: Read the following article and answer the question. Article: Elite Lessons Experienced music performer is offering one-on-one drum lesson. As the winner of the Drummer Contest, the largest drummer contest in Canada, I can teach you secret techniques that only an elite group knows, but the group doesn't share them with the public. The result is instant improvement in your speed and ability to play the drum. Lessons are taught in French or English, $25 an hour. Call at 514-585-5054 if you want to know more information. Private Tutoring Professional French tutor is offering French tutoring, $15 an hour. I possess a BA in translation from Concordia University and have over 5 years' teaching experience. The course consists of conversational French, grammar, reading comprehension ,etc. Courses are given in the downtown area. For more information please call at 514-835-1834. Customized Tutoring Hello, my name is Christopher Marion. I am a graduate students at Concordia University, 21 years of age. I was born and lived in France for 17 years. I will be happy to provide customized help in French writing or speaking. The lesson's style can be whatever suits your needs. I am charging $19 an hour. I live in downtown Montreal. Feel free to contact me at 514-785-5654. Basic Lessons for Beginners Always wanted to learn the guitar? This is your chance and it only costs $14 an hour. I can teach you to play any style of music you like in a fun and relaxed way. I start from the basics, showing you how to play the songs you love, and improving your technique as we go along. If you don't already have a guitar, that's not a problem. Please call at 514-880-8872 or email totarungeo@gmail.comif interested. Thanks!. Question: From "Elite Lessons" you can learn _ . Answer: | OPTIONS:
- how to teach lessons in French or English
- what the largest guitar contest in Canada is
- more information about the Drummer Contest
- skill in drumming that only a few people possess
A: skill in drumming that only a few people possess

Q: Read the following article and answer the question. Article: Now,I'll tell you something about the Internet.The Internet is a network of computers.It became popular in the 1990s.Now,we live in the Internet Age.The Internet is very useful.You can get information,do some shopping or talk with people all over the world.You can do all these things in your own room. You can set up your own space on the Internet.We call it a homepage.It's open to anyone in the world.Write your message on your homepage.Soon,you can get answers by email from people around the world. The Internet is also useful when a flood or an earthquake happens somewhere in the world.We can learn about the needs of the people there and send them food and medicine more quickly than before. In the world of the Internet,everyone is equal.Famous writers,artists,and scientists--they are all your friends.A lucky person can even find a message from the president of a country. Some people lose themselves in the world of the Internet.That's really bad.Remember that the world of the Internet is not a real world.Facetoface communication with family,friends,and neighbours is very important.Don't forget that the Internet is only a tool for communication and information. Many people say that the Internet has some problems,but most people agree the Internet still has a wonderful future.For the first time in history,anyone can exchange messages and information immediately with other people. Question: According to the passage,the Internet is usually used _ . Answer: | OPTIONS:
- to get information from all over the world
- to help people who need help badly
- to react to email from all over the world
- both A and B
A: both A and B