What does the word punctilious mean?

a) pleasant and appealing
b)generous toward someone who is of lesser authority
c)particular and attentive to details and good behavior
d) nervous and lacking in confidence

In about two hundred words, explain how the author's use of folktales and symbolism add meaning to the story and convey the central theme of the novel: the disintegration of the traditional igbo society as a result of its contact with european practices and beliefs.