According to this passage, the sea_______ is likely to have the lowest salinity.

A．There are many different levels of English usage throughout the world.
B．English is becoming more and more widespread in the world.
C．The number of English speakers has been increasing in recent years.
D．English is used widely in science, technology and other fields.

A．for only one reason that English is becoming an international language
B．mainly by people from the American continent and the Europe
C．as an official language in an international conference on the American culture
D．in science and technology as well as in cultural and historical studies of all the countries in the world