<prompt> All of the following are features of Borderline tumors except:Occurs in younger ageMitotic figures 910 per high power filedVery good prognosisStromal invasion seen  <response>: Ans. is d, i.e. Stromal invasionRef: Shaw gynae 15thed, p373-374Malignant tumor has 2 characteristics different from borderline tumors:i Stromal invasion present it is absent in borderline tumor.ii Mitosis 410 per high power field, in borderline 410 per high power 