【单选题】Britain's undeclared general election campaign has already seen the politicians trading numbers as boxers trade punches. There is nothing new in such statistical slanging matches(相互谩骂). What is new is...
A.
the British politicians are often compared to boxers by the people.
B.
it is a common practice that the government plays with figures.
C.
people often overestimate the credibility of official statistics.
D.
the Labor government usually underestimate its official figures.