Convert the sentence provided below from its passive voice structure to an active voice structure:
It was being suggested by multiple sources that the operation had been compromised internally.

Correct option is A

The correct active/passive voice of the given sentence is (a).
Explain the rules of conversion from active to passive or passive to active with structure in detail.
· Identify the agent in the passive: by multiple sources → becomes the subject in active voice ( Multiple sources).
· Match the aspect/tense: was being suggested = past continuous passive. Convert to past continuous active → were suggesting to preserve ongoing nature of the reporting at that past time.
· Retain the that-clause content: that the operation had been compromised internally (past perfect passive) remains unchanged because it denotes an action completed before the suggesting.
· Remove the dummy “It” construction: Passive expletive “It” is dropped in the active version.
· Thus, the faithful active transformation is: Multiple sources were suggesting that the operation had been compromised internally.
Structure:
· Passive (original): Dummy It + was being + past participle ( suggested) + by + Agent + that-clause
· It was being suggested by multiple sources that S…
· Active (converted): Agent (Subject) + past continuous ( were suggesting) + that-clause
· Multiple sources were suggesting that S…
Example (rule illustration):
· Passive: It was being reported by officials that the bridge had been damaged.
· Active: Officials were reporting that the bridge had been damaged.
Explain why other options are incorrect:
· (b) The operation was compromised, multiple sources suggested. — Awkward comma splice of two independent clauses; also foregrounds the result rather than giving a clean, tense-preserving active transformation of the dummy- It passive.
· (c) The sources were suggesting an operation compromise. — Unidiomatic noun phrase (“an operation compromise”) and loss of the precise meaning carried by the that-clause ( had been compromised internally).
· (d) The operation had compromised multiple internal sources. — Reverses the agency/meaning: now the operation compromises the sources, which contradicts the original message that the operation itself was compromised.