A 23 year old female attends her contraception review. She explains over the last few months she has had two episodes of unilateral, throbbing headache causing her nausea and needing her to lie down in a quiet room. There were no red flags in her history, she is a non-smoker and has no past medical history of note. She has been on Combined Oral Contraceptive Pill (COCP) for last 5 years. You suspect that she has been suffering from migraines. She is reluctant to stop COCP as she has no side effects with it and been stable on it for a long time.
What is the UKMEC category for continuing to use COCP for this patient from the options below?