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.
--------
Question: Article: $? While the 2008 Olympics were the first to be broadcast entirely in HD, the 2012 Olympics are the first to broadcast in HD as well as 3D. Sean Taylor, a spokesperson for Panasonic - provider of some of the technologies - said it effectively, "Each Games, from a technology perspective, tries to have a first. London will be the first HD and 3D Games." The games were first televised in Berlin in 1936 and played on big screens about the city. Then came the first games to enter households (strictly in London that is) in 1948, followed by the first internationally televised games during the 1960 Olympics in Rome. And ever since, that feeling of physically standing in the crowd and watching these mighty contestants has only gotten clearer, more defined. Now, they more literally than ever actually compete in your living room. SS A _ is presented as the London games celebrate both the Industrial Revolution (a.k.a. the birth of pollution) and a spirit of committed environmentalism; London will be the first to actively measure its own carbon footprint during these games, designing a stadium and accommodations that cut-back on negative emissions when at all possible. They are also shooting for a world record via the "Javelin," designed specifically to keep as many exhaust pipes at bay as humanly possible.
Question: Where does this text probably come from?
Options: (A) a novel (B) a report (C) a diary (D) an essay

Answer: B

Question: Article: You're on the third lap around the car park, there are no open spaces, and you're already 15 minutes late for your appointment. Right now you're wishing you could jump out of the car and let it go to find its own spot. Now there's an app for that. Virtual Valet lets your smartphone tell your car to park without you in it. "You pull up to the roadside, push a button on your smartphone and the car takes care of everything else," says Aeron Steinfeld, the lead researcher for the project at Carnegie Mellon University in Pittsburgh, Pennsylvania. To find its own spot, the system uses a sensor suite similar to ones found in many luxury cars. This includes a motion sensor that scans for moving cars and pedestrians, and a forward-facing laser rangefinder normally found in adaptive cruise control to determine the distance of objects in front of the car. Information from these sensors is then fed to an onboard computer to plot the vehicle's course. The users can watch the whole process from their phone. Better still, it will be affordable. The team has spent the last year moving from high-end imaging and processing equipment to less expensive components. In experiments, the vehicle was able to navigate through a crowded parking structure, find an empty spot, and park all on its own. And the greatest appeal of the Virtual Valet Parking App is that it requires no change to existing parking facilities or infrastructure. For the moment, the only car equipped for control by Virtual Valet is Carnegie Mellon' modified Jeep Wrangler, which the researchers have named NavLab11. But Steinfeld hopes that major car manufacturers will adopt the technology. It might be more than technology that holds up the show, however. Self-driving cars have been licensed in only three US states -- California, Nevada and Florida -- and it's unclear how this app would agree with self-driving laws. Until these questions are settled, your insurance provider might be unwilling to cover a ding from a parking incident.
Question: We can infer from the text that _ .
Options: (A) no car manufacturers show interest in the technology (B) the technology is now widely used in the US (C) there will be some difficulty in promoting the technology (D) the technology conflicts with self-driving laws in the US

Answer: C

Question: Article: It's parents' worst nightmare. Their child doesn't come home one evening and is missing for several days. When a 14-year-old boy from Atlanta, Georgia disappeared earlier this year, his mother turned to her Smartphone for clues using an app called Family Tracker that helped track his location. "You can see where your loved ones are without having to call or bother them. "said Roberto Franceschetti of LogSat, the creators of the Family Tracker, which has more than 100,000 users and is available worldwide. Parents can track the location of their child on a map, send messages, and even sound an alarm on the phone in a long distance. "We have an option for the sender to make a very unpleasant, noisy sound. It's a loud alarm and we repeat that sound every two minutes until the person picks it up, "he said. Parents don't need to own a Smartphone to track their children. The service is also accessible through the web, as long as the phone that is being tracked is running the app. Family Tracker has an additional service that keeps records of all data from the app for a two-week period, which the company calls GPS breadcrumbs. "With a subscription , we keep all the locations where people have been on our servers. You can see where your kid has been for the past two weeks. You can find out where someone was at a certain time or when that person was at a specific place, "Franceschetti explained. "When somebody gets abducted , usually whoever does this throws the phone away or takes the battery out. We were hoping that our app would at least provide information on where the person was abducted or where they had been in the past. " But will these types of apps let out personal secrets? "The advantages are huge compared to the disadvantages. Let's not forget that the person always has to give initial permission--no one can be tracked unless they allow someone to do it. "said Franceschetti.
Question: According to the passage, all of the following about "Family Tracker" are true EXCEPT that _ .
Options: (A) it can help parents know where their children are (B) all parents don't need to own a Smartphone to track children (C) parents can use all the services of the app for free (D) it has little to do with letting out personal secrets

Answer:
C