Which of the following is NOT right about Mark Twain's style of language?
A.
His words are colloquial, concrete and direct in effect.
B.
His sentence structures are simple, even ungrammatical, which is typical of the spoken language.
C.
His humor is remarkable and characterized by puns, straight-faced exaggeration, repetition and anti-climax.
D.
His style of language had exerted only a limited influence on the contemporary writers.