Questions 7 and 8 are based on the following news. Dale Jorgenson points out that the 2.78 grow rate will be continued in the next ______.

A．The population total in 2000 was reached by different method from that in 1990.
B．There might be some problems with the judgment calls by the researchers.
C．United Jewish Communities offered not enough financial support to the survey.
D．It is the result of the rash of headlines leaving the impression that the population has declined.