The correct answer is: C. break
A rupture is a sudden and complete break in something, especially a relationship. In this case, the relationship between the two brothers has broken down completely.
The other options are:
- Gap - a break or opening in something, especially a continuous surface. This is not the correct answer because it does not convey the sense of a complete break.
- Damage - harm or injury to something. This is not the correct answer because it does not convey the sense of a complete break.
- Breach - an act of breaking the law or a rule. This is not the correct answer because it does not convey the sense of a complete break in a relationship.
