Neither lanai nor i qualified for the final rounds. determine the case and function of the underlined pronoun.

I'll assume that the "I" is underlined.
The word "I" just references yourself and makes the reader know that you are talking about yourself and not some other person. As for case, it is Subjective; Lania is the complement of the subject, which is "I."

Claim for social media: social media is a growing issue in our society but, is it really an issue. social media can allow children and young adults to see different aspects of culture, communicate, and share experiences with peers.counterclaim: although social media can be distracting to children and young adults, limiting usuals in social media can ensure social media is an addition and not a control factor to your day to day life.