Which of the following countries was earlier known as Republic of Upper Volta?
[B]Burkina Faso

Burkina Faso
Burkina Faso is a land-locked West African state surrounded by six countries. It has a population of just over 17 million people. Formerly known as the Republic of Upper Volta, the official language is French. It is an important ally for the US and France in the fight against militants in the Sahel region. A military coup was held here recently.