challenge: Which of the following is a correct indication for Trastuzumab/hyaluronidase?
  
  A. Treatment of adults with ER/PR positive breast cancer
  B. Adjuvant treatment of adults with HER2 overexpressing node positive breast cancer
  C. Treatment of adults with HER2-negative breast cancer
  D. First-line treatment of HER2-negative metastatic breast cancer
  Answer: 