“brinkmanship” is the practice of taking a dispute to the edge of conflict

forcing the opposition to back down.

engaging in a military battle.

taking part in peace talks.

retreating to one’s own “corner.”

The correct answer is - forcing the opposition to back down.

The brinkmanship is an interesting and very specific political practice. It is mostly performed in the way of threatening, very often with nuclear weapons, and pushing the dispute and raising the tensions to the edge, and than back off. This practice was the most often used way of ''communication'' between the United States and the Soviet Union during the Cold War period, when it seemed on multiple occasions that they will start hitting each other with nuclear weaponry and make another World War.

Basically, the purpose of the brinkmanship is to terrify the opponent to a point where it will back down.

Explanation: The brinkmanship is an interesting and very specific political practice. It is mostly performed in the way of threatening, very often with nuclear weapons, and pushing the dispute and raising the tensions to the edge, and than back off. This practice was the most often used way of ''communication'' between the United States and the Soviet Union during the Cold War period, when it seemed on multiple occasions that they will start hitting each other with nuclear weaponry and make another World War.

b) brahmans   is nomadic society

yup! you are correct it is b.