Traditional Igbo religion includes belief in a creator god (Chukwu or Chineke), an earth goddess (Ala), and numerous other deities and spirits as well as a belief in ancestors who protect their living descendants. Revelation of the will of the deities is sought by divination and oracles.
An ideal writing structure to help a reader understand a certain event is chronological text structure. Chronological order lists the pieces of the events from the start to the end in the order they happen. So, the answer is D.