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.

[EX Q]: Article: They tell us when to get up or when we're running late for work and whether we are in danger of missing our favourite TV programme. But while our daily routines rely on clocks that tell us the time, science is discovering that our well-being is influenced by a very different kind of timepiece. Circadian rhythms---the human body's own internal clock---have a powerful influence on our health and behaviour. _ are programmed from birth and control functions ranging from temperature and blood pressure to sleep patterns. In recent years researchers have also discovered that this built-in mechanism can influence everything from the way we react to medicines to how well we learn music. The latest example, from experts at Harvard University in the US, shows that the human body clock can even dictate whether or not we are likely to tell the truth. Researchers found it was easier for people to fib in the afternoon because, as they were tired, the self control that would normally prevent them from lying started to break down. Tiredness made it harder to resist the temptation to tell lies---especially if it meant they got a financial reward at the end. "The body clock has a great effect on us all," says Professor Jim Horne from the Sleep Research Centre at Loughborough University. "Most people tend to feel good around late morning and then decline in the early afternoon. But the time most of us will feel our sharpest is between 6pm and 8pm. That's because sleepiness tends to build up throughout the day. By early evening our body clock kicks in to wake us up. One reason may be to ensure we get home safely. When our ancestors were coming home after hunting all day their internal clocks kicked in to get them home in one piece." So what effects do circadian rhythms have and what's the best time of day to take advantage of them?
Question: According to the passage, when are people most quick-thinking?
Options: (A) In the morning. (B) Around midday. (C) In the late afternoon. (D) In the early evening.
[EX A]: D

[EX Q]: Article: I moved to this area seven years ago. For years I have had noisy neighbours. Ever since I moved into this flat, I've had to put up with noise during the night. I decided I'd had enough and I've been looking for a new flat since the beginning of the year. I haven't found anything till now. Every week I go to the estate agent's office, but it's the same story. "I might have something by the end of the week" he says, or, "Wait till next week. I think I might have a few flats by then." I've seen a few flats during my search, but I don't like any of them. One flat I saw has been empty for two years. "It's got a busy road on one side and a railway on the other!" I said loudly, "I want peace and quiet." Last week I visited the agent again. "I won't leave till you show me something," I said. "I've got just the flat for you." I went to see it and I was frightened. "But it's next to a cemetery!" I cried. "But you won't have noisy neighbours," my agent said. "It's exactly right for peace and quiet!"
Question: The writer has had to bear the noise in this area for _ years.
Options: (A) about seven (B) six (C) nine (D) four
[EX A]: A

[EX Q]: Article: Liverpool, my hometown, is a unique city. It is so unique that in 2004 it became a World Heritage Site. I recently returned to my home city and my first stop was at a museum on the River Mersey. Blanketed in mist , Victorian architecture rose from the banks of the river, responded to the sounds of sea-birds, and appeared unbelievably charming. When I headed toward the centre, I found myself surrounded by buildings that mirror the best palaces of Europe. It is not hard to imagine why, on first seeing the city, most visitors would be overpowered by the beauty of the noble buildings, which are solid signs of Liverpool's history. As if to stress its cultural role, Liverpool has more museums and galleries than most cities in Britain. At Walker Art Gallery, I was told that it has the best collections of Victorian paintings in the world, and is the home of modern art in the north of England. However, culture is more than galleries. Liverpool offers many music events. As Britain's No.1 music city, it has the biggest city music festival in Europe, and its musicians are famous all over the world. Liverpool is also well-known for its football and other sports events. Every year, the Mersey River Festival attracts thousands of visitors, making the city a place of wonder. As you would expect from such a city, there are restaurants serving food from around the world. When my trip was about to complete, I chose to rest my legs in Liverpool's famous Philharmonic pub . It is a monument to perfection, and a heritage attraction itself. Being a World Heritage Site, my home city is certainly a place of "outstanding universal value". It is a treasure house with plenty of secrets for the world to explore.
Question: Visitors who see the city for the first time would be deeply impressed by _
Options: (A) its charming banks (B) its famous museums (C) its wonderful palaces (D) its attractive buildings
[EX A]:
D