Concept:The Massina Empire was founded by a Fulani Islamic leader in the early 19th century in West Africa.Explanation:Ahmad Lobbo, also known as Seku Amadu, launched a successful Islamic reform movement in the Inner Niger Delta region.He founded the Massina Empire in 1818 in present-day Mali.The empire was a theocratic state governed by Islamic law, Sharia.Thus, among the leaders listed, Ahmad Lobbo was the founder of this empire.Answer:A. Ahmad Lobbo