Asian Development bank (ADB) was founded in _________?

Asian Development bank (ADB) was founded in _________?

A. 1964
B. 1966
C. 1968
D. 1970

The Asian Development Bank (ADB) is a regional development bank established on 19 December 1966, which is headquartered in the Ortigas Center located in the city of Mandaluyong, Metro Manila, Philipes. The company also maintains 31 field offices around the world to promote social and economic development in Asia.