The correct answer is A. Irreparable.
Irreparable means that something cannot be fixed or made good. It is often used to describe damage that is so severe that it cannot be repaired. For example, a broken vase may be irreparable, while a chipped vase may be able to be repaired.
Irrevocable means that something cannot be changed or undone. It is often used to describe decisions or actions that have permanent consequences. For example, a divorce is an irrevocable decision, as it cannot be reversed once it has been finalized.
Irreconcilable means that two things cannot be made compatible or consistent. It is often used to describe differences in opinion or belief that cannot be resolved. For example, a couple may be irreconcilably opposed to having children.
Irreplaceable means that something cannot be found or obtained again. It is often used to describe people or things that are unique or of great value. For example, a lost heirloom may be irreplaceable.
In the context of the question, the correct answer is A. Irreparable. This is because the question is asking for something that cannot be rectified or made good. Irreparable is the only option that meets this criteria.