Which statement is NOT correct concerning the content words and functional words ?
A.
Content words do far more work of expression in English on average than functional words.
B.
The number of content words is ever growing while the number of functional words remains stable.
C.
Contents words constitute the main body of the English vocabuary, whereas functional words make up a very small number of the vocabulary.
D.
Words are grouped into content words and functional words by notion.