Concept:Nigeria’s action was a response to Israel’s territorial expansion after the 1967 Arab-Israeli War, which continued into 1973.
Explanation:In 1967, Israel defeated the combined forces of several Arab nations.
After its victory, Israel occupied and annexed important Egyptian territories, including the Sinai Peninsula.
In 1973, during renewed hostilities, these territorial gains remained a major point of conflict.
Nigeria, in solidarity with African and Arab nations, broke diplomatic relations with Israel over its continued occupation of Egyptian land.
Answer:A. occupation of Egyptian territory.