Final answer:
The word that best completes the sentence is 'defiant', which means showing resistance or disobedience. For example, Annika may have tried to get her little brother to bed, but he refused and stayed awake, deliberately ignoring her instructions.
Step-by-step explanation:
The word that best completes the sentence is defiant. The sentence implies that Annika tried to get her little brother to bed but he resisted or disobeyed her. 'Defiant' is an adjective that describes someone who shows resistance or disobedience towards authority.
For example, Annika may have asked her brother to go to bed, but he refused and stayed awake, deliberately ignoring her instructions. In this context, the word 'defiant' accurately describes his behavior.
Learn more about The part of speech in the sentence