A school nurse is talking with a 13-year-old female at her annual health-screening visit. Which of the following comments made by the adolescent should be the nurse's priority to address?

"I haven't gotten my period yet and all my friends have theirs."

"None of the kids at this school like me, and I don't like them either."

"My parents treat me like a baby sometimes."

"There's a big pimple on my face, and I worry that everyone will notice it."