Explanation:

- The prompt states: "The government has launched a massive tribal welfare programme in Jharkhand."

- Option 1: "A massive tribal welfare programme is launched by the government in Jharkhand."

- Uses present tense ("is launched"). Doesn't match the past tense used in the prompt.

- Option 2: "A massive tribal welfare programme has been launched by the government in Jharkhand."

- Uses present perfect tense, aligns with the prompt's past tense context.

- Option 3: "Jharkhand government has launched a massive tribal welfare programme."

- Focuses on the Jharkhand government specifically. Could be seen as similar but doesn't fully match the passive construction.

- Option 4: "The government in Jharkhand has launched a massive tribal welfare programme."

- Uses active voice. Matches the information but not the passive voice like the prompt.

Option 2: A massive tribal welfare programme has been launched by the government in Jharkhand.