Choose the correct meaning of the underlined idiom in the given sentence.
Blue blood is not necessarily a guarantee of one’s public decorum.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. A person belonging to a high family.
The idiom "blue blood" refers to someone who is of noble or aristocratic descent. It originates from the notion that the veins of aristocrats appear blue due to their fair complexions, contrasting with the visible veins. Therefore, in the context of the sentence, it implies that having a noble lineage does not automatically ensure proper behavior or decorum in public.