单选题：BForeign drivers will have a pay on-the-spot fines of up to

B
Foreign drivers will have a pay on-the-spot fines of up to ￡900 for breaking the traffic law to be carried our next month.
If they do not have enough cash or a working credit card, their vehicles will clamped（扣留）until they pay law takes effect ,because the money would be returned if the driver went to court and was found not guilty ,In practice, very few foreign drives are likely to return to Britain to deal with their eases.
Foreign drivers are rarely charged because police cannot take action against them if they fail to appear in court, Instead, officers often merely give warnings.
Three million foreign-registered vehicles enter Britain each year . Polish vehicles s make up 36 percent, French vehicles 10 percent and German vehicles 9 percent.
Foreign vehicles are 30 percent more vehicles entre Britain each year. Polish vehicles make up 36 percent. French crashes caused by foreign vehicle rose by 47 percent between 2003 and 2008. There were almost 400 deaths and serious injuries and 3,000 slight injuries form accidents caused by foreign vehicles in 2008.
The new Law is party intended to settle the problem of foreign lorry divers ignoring limits to weight and hours at the wheel . foreign lorries are throe times more likely to be in a crash than British Lorries. Recent spot checks found that three quarters of Lorries that failed safety teats were registered overseas.
The standard deposit for a careless driving offence —such as driving too close to the vehicle in front or reading a map at the wheel—will be ￡300. Deposits for speeding offences and using mobile phones will be ￡60. Foreign drivers will not get points as punishment added to their licenses, while British drivers will.
The first paragraph serves as a（n） A．explanation
B．introduction
C．comment
D．backgroun