Final answer:
Colony-stimulating factors are medications used to combat bone marrow suppression caused by cancer treatments.
Step-by-step explanation:
Bone marrow suppression is a common side effect of cancer treatments such as chemotherapy. To combat this, medications called colony-stimulating factors are often used. These drugs help stimulate the production of different types of blood cells in the bone marrow, including neutrophils which are responsible for fighting infections. Therefore, the correct answer to the question is c) Colony-stimulating factors.