OK so I believe the best option for you to go with will be Pelvic inflammatory Disease.
Cartilage ear piercings may take up to a year to fully heal, but generally take 3-6 months (as opposed to the ear lobe, that takes just 4-6 weeks). They heal from the outside in, so even if it looks fine on the outside, you should not assume it is fully healed.
A - at the time the even occurs
Well actually it depends if they are talking so I could talk on the phone and if they are getting to work they could drive
I believe the correct answer for this would be C.