Correct Answer: Rebel

Solution : The correct choice is the second option.

Explanation : In this context, the word needs to convey the idea of opposition or resistance to a government or ruler. "Rebel" is the most appropriate choice as it denotes a person who resists or opposes authority, often through armed conflict or rebellion.

The meanings of the other options are as follows:

• Volunteer : A volunteer is someone who willingly offers to do something.
• Rubel : This word refers to a currency.
• Participant : A participant is simply someone involved in an activity or event.