I believe the answer is E.
I hope this helps!
Cheers, July.
What is a bacterial infection passed from person to person through
contact with sores on the genitals, anus, rectum, or mouth that can
cause long-term complications and/or death if not adequately treated?
Syphilis
This could be many things. It's common for young girls you have irregular periods but could also be a health problem. There is also a possibility of pregnancy if she is sexually active.