Concept:Identify the nationalist group founded in Nigeria around the late 1930s.Explanation:The Nigerian Youth Movement (NYM) was formed in 1936 as a broad nationalist organisation.It grew out of the earlier Lagos Youth Movement and gained national membership.Prominent leaders such as Obafemi Awolowo and Ernest Ikoli were associated with it.It was the first major nationalist movement with a truly national outlook in Nigeria.The other options are either earlier or later organisations, not the one formed in the late 1930s.Answer:C. Nigerian Youth Movement