Answer:
Increase fluid intake while taking the drug.
Step-by-step explanation:
Cancer is the uncontrolled division of the cells that might occur due to mutation in the tumor suppressor gene or in the proto oncogene. Leukemia is the cancer of white blood cells.
The interferon alfa 2b injections are given to the patients for the treatment of leukemia. This drug has harmful effects as well and can cause excessive bloody diarrhea, cough and even depression. The patient must increase the fluid intake to prevent himself from the diarrhea.
Thus, the answer is option (C).