The answer to this is a. The patient is taking bevacizumab. The fact that there is zu in the name of this product meant that this is a humanized antibody. Being in remission does not necessarily mean cancer-free. It means that there is no need to take certain treatments as the cancer is not growing or is not progressing for the worse.
There are some doctors who will say that a patient is in complete remission when there is no trace of cancer at all. Those who have had cancer need to undergo check-ups to ensure that the cancer cells will not come back. A healthier lifestyle can help the person’s cancer to stay in remission for a long time.