The term "in the doldrums" in the second paragraph refers to ______.

A．new figures from the three European countries show the prediction of forecasters is exactly right
B．European economy gets on better than forecasters have predicted
C．all of the forecasters expect the fully figure to show a reduction
D．in three European countries the consumer spending continues to rise

A．Gallup focused more on quantity than quality
B．Gallup Poll was firstly based on sociological rather than arithmetical calculations
C．Gallup determined the number of the interviewers from the beginning
D．there is not a maximum number of interviewers in Gallup Poll