Which is an example of irony from the great gatsby?
a. the established rich live in east egg rather than west egg.
b. nick has a lot of wealth, but he is from the midwest.
c. the "valley of ashes" lies between new york and west egg.
d. gatsby throws massive parties but is a loner?

D. Gatsby throws massive parties but is a loner.

It is ironic because typically, party throwers are not lonely, yet Gatsby throws them because he is lonely, because he wants to attract Daisy to make him lonely no-more! The other cases are not necessarily ironic, at least not the way in which they are described. Perhaps more explanation would make them ironic, but as they are now, D seems to be the best choice.

yup! you are correct it is b.

a is the final : )