Correct option is B
The correct antonym of the given word "dull" is "riveting."
Dull: Lacking interest or excitement.
Hindi meaning: नीरस
Synonyms: boring, monotonous, tedious, uninteresting.
Antonyms: riveting, exciting, fascinating, engaging.
Example: The plot of the novel is very dull.
Antonym: "
riveting": Completely engrossing or absorbing; compelling.
Hindi Meaning: दिलचस्प
Example: The movie was so riveting that I couldn't take my eyes off the screen.
Meanings of all options:
Diverting: entertaining or amusing.
Riveting: completely engrossing.
Plodding: slow-moving and unexciting.
Charming: pleasant and attractive.