<prompt> A 23-year old patient diagnosed with stage IA malignant ovarian germ cell tumour. Which of the following would be the standard treatment? NOT RELATED- GYNUnilateral oophorectomyBilateral oophorectomy and hysterectomyUnilateral oophorectomy followed by chemotherapyOvarian biopsy followed by chemotherapy  <response>: Unilateral oophorectomy followed by chemotherapy 