Correct Answer: obligations

Solution : The correct choice is the fourth option.

Explanation: The concept of revenge is often associated with a sense of duty or responsibility, conveyed through the word obligations . The sentence suggests a moral or perceived duty within the idea of seeking revenge, which includes the demand for a life in return for another life.

The meanings of the remaining options are as follows:

Cheering: It refers to expressing joy, support, or encouragement with loud shouts.

Moaning: It refers to a low, mournful sound expressing pain or grief.

Crowning: It usually refers to placing a crown on someone's head, symbolising the act of becoming a king or queen.

Therefore, the correct word to fill in the blank is obligations.