The expression 'his language often betrays him into dullness,coldness,or worst of all, rudeness' means that
A
his English language lets him down and he becomes dull,cold and rude
B
the way he uses the language gives one the impression that he is dull,cold or rude
C
he betrays his bad manners by using English badly
D
his dullness,coldness or rudeness
Verified Correct Answer: B.
Grammar & Contextual Explanation
The statement implies that the person's manner of expressing himself in English can unintentionally convey negative qualities like dullness, coldness, or rudeness, even if that is not his intention or actual personality traits.
Source: Myschool Past Questions Archive (Record #14911)