This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Endocrinology and breast, Subject name: Anatomy
[{'content': 'Investigation of choice for high risk breast cancer in female is \nSelect and explain. \nA. MRI, B. CT- PET, C. Mammography, D. USG', 'role': 'user'}, {'content': 'Answer: A \nExplanation: MRI Indicated in scarred breast, implants and borderline lesions for breast conservation Investigation of choice for implant related complications. Gold standard for imaging breast in females with implants Ref: Sabiston 20th edition Pgno :826-828', 'role': 'assistant'}]