About Daniel Defoe, which one of the following statement is true?
选项：

A:In Defoe’s writing, his interest is largely with the working class. ;
B:Defoe is a journalist and pamphleteer, as well as a writer.;
C:Defoe’s style is characterized by a plain, smooth and almost colloquial language.;
D:In Defoe’s writing, his focus is on upper class.