In information security, a breach is a confirmed event that compromises confidentiality, integrity, or availability.
A breach occurs when an obligation or promise is not fulfilled. An act of breaking laws, rules, contracts, or promises; a violation of the basic laws of humanity; a violation of a law; a breach of a promise. The factions hoped to avoid a break in relations; "they hoped to avoid a break".
Therefore, the option C, which is our answer.
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