Correct option is A
• Explanation: The word “protagonist” refers to the main person in a story. In the passage, children imagine themselves as the main character in situations.
• Correct answer word – main character
Meaning: the central person in a story
Example: The protagonist of the story is a brave boy.
Meanings of other options:
• opponent – a rival or enemy
• children – general group, not meaning of the word
• adult – unrelated meaning