b. illustrate how different the two religions seem to Nwoye.
d. convey how deeply Nwoye is moved by the missionary’s teachings.
Explanation:
In this description, Achebe describes how Nwoye felt when he began to practice Christianity. We learn that Nwoye was extremely moved by the missionary's teachings. This is expressed by the fact that he felt a relief in his soul. Moreover, we also learn that the two religions were very different to him. This is shown by the fact that one religion led to a "parched soul" and a "dry palate" while the other one was like "drops of frozen rain."
