The presence of an unreliable narrator means i. the story is all false and not worth reading. ii. you can't trust the accuracy of the information. iii. the narrator may be lying or unable to give accurate information i only i and ii ii only ii and iii

 I think the correct answer is II and III.

The presence of an unreliable narrator means:

II. You can't trust the accuracy of the information.

III. The narrator may be lying or unable to give accurate information

Having an unreliable narrator does not immediately mean that the story is all false and not worth reading. You just need to change the unreliable narrator to a reliable one.

That's something your gonna have to yourself with buddy!