Concept:The Alkali served as judicial officers in the Hausa-Fulani political system.Explanation:The Alkali was primarily a judge responsible for settling disputes.He administered justice according to Islamic law (Sharia).Minor cases could sometimes be referred to village heads, but the Alkali remained the main legal authority.His duty was to interpret and apply Islamic law in court, not to make or execute laws.Answer:A. adjudicate under Islamic laws