Concept:The decline of the Omani Empire in the 19th century was mainly caused by internal conflicts over leadership and power.
Explanation:The empire was weakened by a series of succession disputes and civil wars among ruling family members.
After the death of a powerful ruler, rivalry between different branches of the royal family split the empire.
These internal power struggles distracted leaders from governing effectively and defending the empire.
As a result, the central authority became weak and could not hold the empire together.
This made it easier for parts of the empire to break away and for foreign influence to grow.
Natural disasters and invasions from neighboring empires were not the main causes of the decline.
Although European colonialism later affected the region, the real trigger was the internal division.
Answer:A. Internal power struggles