According to the passage, which of the following countries attracts more tourists than the others

A．all the 37 million people living in Spain are tourists
B．every Spanish is visited by a tourist every year
C．every person living in Spain has to take care of a tourist
D．every year almost as many tourists visit Spain as there are people living in that country

A．to show that they are not good cities in terms of geography and climate
B．to prove that they have got more tourism than they can handle
C．to suggest that these cities lack places of historic interest and scenic beauty
D．to tell us how wealthy their residents are