Change the voice. The government has launched a massive tribal welfare program in Bandarban.
A. A massive tribal welfare program is launched by the government in Bandarban.
B. A massive tribal welfare program has been launched by the government in Bandarban.
C. The government in Bandarban has launched a massive tribal welfare program.
D. The government in Bandarban has been launched a massive tribal welfare program.
সঠিক উত্তরঃ
B.
A massive tribal welfare program has been launched by the government in Bandarban.
Explanation: 
