Concept:The first British consul appointed in the area that later became Nigeria was John Beecroft.Explanation:In 1849, Britain appointed John Beecroft as Consul of the Bights of Benin and Biafra.This position covered the coastal region of present-day Nigeria.He served in this role while also governing Fernando Po.He remained in office until his death in 1854.Therefore, he is recognised as the first British consul in Nigeria.Answer:B. John Beecroft