The biggest limitation of a first person POV/first person narrator is that you literally cannot show your audience anything that the POV character doesn't experience. So: You cannot provide information about a world-building point, if the character isn't aware of it.
A limitation means a disadvantage, flaw or drawback of something. In this case the question is asking what the flaw of first person is.
With first person narration <u>we are only exposed to the thoughts an feelings of one person.</u> A limitation to this is that <u>we don't know what the other characters think or feel through out the story</u>. <u>We only know their actions as seen through the first person.</u>
