In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

[Q]: Article: Suppose that we lined up our roughly 14 million United States businesses in order of size, starting with the smallest, along an imaginary road from San Francisco to New York. There will be 4,500 businesses to the mile, or a little less than one per foot. Suppose further that we planted a flag each business. The height of the flag pole represents the yearly volume of sales , each $ 10, 000 in sales in shown by one foot of pole. The line of flagpoles is a very interesting sight. From San Francisco to about Reno, it is almost unnoticeable, a row of poles about a foot high. From Reno eastward the poles increase in height until, near Columbus, Ohio - about four - fifths of the way across the nation - flags fly about 10 feet in the air. But as we approach the eastern terminus , the poles suddenly begin to mount . There are about 300, 000 firms in the country with sales over $ 500, 000. These firms take up the last 75 miles of the 3,000 - mile road. There are 200, 000 firms with sales over $ 1 million. They take up the last 50 miles. Then there are 1, 000 firms with sales of $ 50, 000, 000 or more. They take up the last quarter of a mile before the city limits, flags flying at cloud height, 5 , 000 feet up . At the very gate of New York, on the last 100 feet of the last mile , we find the 100 largest industrial firms . They have sales of at least $ 1.5 billion, so that their flags are already miles high. Along the last 10 feet of road , there are 10 largest companies . Their sales are roughly $ 10 billion and up : their flags fly 190 miles in the air , almost in the stratosphere .
Answer: To tell us how the United States businesses are arranged.
[A]: What is the author's main purpose in this passage?

[Q]: Article: Police Officer Tidwell left the station just after 8 a.m.on Sunday June 4.He had spent aboring night on duty and was looking forward to his day of rest.By habit he took a short-cutdown the path behind Dugby Hall road and after a minute or two he saw a man climbing down a drainpipe from an open bedroom window of Number 29.In silence,Tidwell crept into the garden.The man reached the ground and was dusting himself down when he felt his arm caught. "It's 8:15 on a Sunday morning,"said the officer,"and this sort of thing seems an unlikely adventure at such a time.Would you mind explaining?" The man was obviously scared but tried to keep calm.He said,"I know what you are thinking,officer,but it isn't true.This is a funny mistake." "It's part of my job to take an interest in unusual events.I think you've just left this house in a manner other than the customary one.That may be quite innocent,but I'd like to make sure."Tidwell took out his notebook and a pen."Name,address and occupation and then,please,tell me your story..." "Charlie Crane,lorry driver,from Nottingham,51 Breton Street.My story..." "Yes.What were you doing like a fly on that wall,Mr.Crane?" "Well,I had a breakdown yesterday and had to stay the night here.Bed and breakfast.Theland-lady's name is Mrs.Fern.She gave me breakfast at seven,and I was out of here in the right way and down at the lorry by half past seven.Only when I felt around for a cigarette did I realize I'd left$80in my envelope under the pillow here at number 29.I always put it under my pillow at night.It's a habit I've got into.I even do it at home..." "I see.Why didn't you miss it when you went to pay Mrs...What's her name?" "I'd paid her last night.You've got to pay when you take the room,see?So I came rushing back,but it's Sunday,and she'd gone back to bed,and could I wake her?I rang the bell and banged on the front door for ten minutes before I came round here to the back and spotted my bedroom window still open.Up I went,then,up this pipe.It's a trick I learned in the army.She didn't make the bed,and money was still there.You know the rest,I hope you believe it because..." "Mr.Crane,whatever are you doing here?I thought you'd gone an hour ago."It was Mrs.Fern,speaking from the kitchen at the corner of the house.
Answer: He knew he would get home quicker that way.
[A]: Why was Tidwell walking along the path behind Dugby Hall road?

[Q]: Article: Britain is a popular tourist place. But tours of the country have pros and cons. Good news Free museums. No charge for outstanding collections of art and antiquities. Pop music. Britain is the only country to match the US on this score. Black cabs. London taxi drivers know where they are going even if there are never enough of them at weekends or night. Choice of food. Visitors can find everything from Ethiopian to Swedish restaurants. Bad news Poor service. "It's part of the image of the place. People can dine out on the rudeness they have experienced," says Professor Tony Seaton, of London University's International Tourism Research Center. Poor public transport: Trains and buses are promised to defeat the keenest tourists, although the over-crowded London tube is inexplicably popular Lack of languages. Speaking slowly and clearly may not get many foreign visitors very far, even in the tourist traps . Rain. Still in the number one complaint . No air-conditioning. So that even splendidly hot summers become as unbearable as the downpours. Overpriced hotels. The only European country with a higher rate of tax on hotel rooms is Denmark.
Answer: Overpriced hotels.
[A]:
What do tourists complain most?