Select the correct option:
If the security protocol ___ breached, the system alerts administrators instantly.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. is.
Grammatical concept: This is a Zero Conditional sentence. Zero conditionals are used to express general truths, scientific facts, or situations where one action always causes another.
Structure: If + Simple Present, ... Simple Present.
Analysis of the given options:
- were: Used in second conditionals for hypothetical or imaginary situations; it does not match the factual tone of "alerts instantly".
- is (Correct): The simple present passive form fits the Zero Conditional structure, matching the present tense result "alerts".
- has: This is an auxiliary verb that would require a past participle (e.g., "has breached"), but the protocol is the receiver of the action, requiring a passive construction.
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had been: Used in third conditionals for past hypothetical situations, which contradicts the present tense "alerts".
Correct word: is.
Final sentence: If the security protocol is breached, the system alerts administrators instantly.
Hence, the chosen option is correct.