Match the words in List I with their antonyms in List II

Choose the correct answer from the options given below:

A-III, B-I, C-II, D-IV

The correct matches are:

Here's a brief explanation of each match:

• "vigilant" means "keeping careful watch for possible dangers or difficulties". The antonym is "unwatchful", meaning "not vigilant or attentive".

• "impudence" means "rude or disrespectful behavior". The antonym is "modesty", meaning "humility and freedom from conceit".

• "offspring" means "descendants or children of a person or thing". The antonym is "ancestors", meaning "the people who lived before and are related to a particular person or family".

• "bright" means "having or showing a quick-witted intelligence". The antonym is "dull", meaning "slow or stupid to understand things".

Therefore, the correct matches are vigilante - unwatchful, impudence - modesty, offspring - ancestors, and bright - dull.