请教nn一道语法题...谢谢:)

Though the term "graphic design "may suggest laying out corporate brochures and annual reports ,they have come to signify widely ranging work ,form pachage designs and company logotypes to signs, book jackets ,computer graphics,and film titles .

A  suggest laying out corporate brochures and annual reports ,they have com to signify widely ranging

B suggest laying out corporate brochures and annual reports ,it has come to signify a wide range of

C suggest corporate brochure and annual report layout ,it has signified widlely ranging

D   have suggested corporate brochure and annual report layout ,it has signified a wide range of

E  have suggested laying out  corporate brochures and annual reports ,they have come to signify widely ranging

答案是b．．．．．能分析下吗？

1）suggest doing/that do...

2）they错，it指代term"grahic design"

3）a wide range of work，后面列举 "from...to..."插入语