How has the study of mitosis affected scientists’ knowledge of cancer?

How has the study of mitosis affected scientists’ knowledge of cancer?

a. It led to a study of how to induce cancer cells to divide more rapidly.
b. It led to an understanding of how cancer cells divide so rapidly.
c. It led to the development of contact-inhibition regulators.
d. It led to the discovery of how to prevent cancer cells from dividing.