Concept:The Nigerian Civil War (1967–1970) involved external powers taking different sides.
France was the most prominent international supporter of Biafra.
Explanation:Biafra was the region that attempted to secede from Nigeria, led by Colonel Odumegwu Ojukwu.
France provided diplomatic, financial, and military support to Biafra, including weapons and supplies.
This support was motivated by French geopolitical interests in weakening Nigeria and Britain’s influence in West Africa.
The United Kingdom officially supported the Nigerian federal government.
The United States maintained an official stance of neutrality but leaned toward Nigeria.
China was not a major actor in the conflict.
Therefore, among the options given, France is the major international power that supported Biafra.
Answer:A. France