题目内容：
阅读下面文章，回答题。Today there are policemen everywhere, but in 1700, London had nopolicemen at all．A few old men used to protect the city streets at night andthey were not paid．
About 300 years ago, London was starting to get bigger and moreand more people began to live there．The city was very dirty and many peoplewere poor．There were so many thieves who stole money in the streets thatpeople stayed in their homes as much as possible．In 1750 ,Henry Fieldingstarted to pay a group of people to stop thieves．They were like police-men andwere called "Bow Street Runners" because they worked near Bow Street．
Fifty years later, there were 120 "Bow Street Runners",but London had become very big and needed more policemen．So in 1829, the firstMetropolitan( or London)Police Force was started with3,000 officers．Most ofthe men worked on foot, but a few rode horses．Until 1920 all the police in London were men．
Today, London police are quite well paid and for the few police officers who still ride horses,the pay is even better than for the others．
In 1700, the men who protected the streets were paid__________． A．a few
B．nothing
C．a little
D．a tot
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