Change the voice of the following sentence.
The satellite has been launched successfully by ISRO.

Correct option is B

The correct active/passive voice of the given sentence is (b).
Rules of Conversion (Passive → Active):
· Identify agent (“by ISRO”) → becomes subject in active.
· Passive structure: has been + V³ → Active structure: has + V³ (present perfect).
· Keep adverb position natural: “launched the satellite successfully.”
· Structures:
· Passive: Object + has been + V³ + (by + agent)
· Active: Agent/Subject + has + V³ + Object (+ adverbial)
· Why others are incorrect:
· (a) have with singular ISRO (incorrect; should be has).
· (c) Verb form wrong ( has launch → should be has launched).
· (d) Adjective successful used instead of adverb successfully.
· Correct Answer (Active): ISRO has launched the satellite successfully.