For taking part in the unsuccessful _____, the mutineers were court-martialed.
Answer Details
The correct option to fill the gap is "coup."
The sentence is referring to a group of people who participated in an unsuccessful coup, which is a sudden, violent, and illegal seizure of power from a government or other authority. Because the coup was unsuccessful, the participants were charged with a crime and put on trial in a military court, which is known as a court-martial.
The other options are not suitable to fill the gap. "Coope" is not a word in the English language, "copes" means to deal with or handle a difficult situation, and "coupe" refers to a car with a fixed roof and two doors.