Which word in the sentence, if any, should be followed by a colon?

you can buy hammers in hardware stores, home improvement stores, and department stores.

a.
no colon is needed.

b.
hardware

c.
in

d.
hammers

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.