Growth factors stimulate:.
A. The cell to ignore the check points of the cell cycle.
B. Cdks to synthesize enzymes that digest cyclins.
C. Cells to divide.
D. The cell to skip the S and G1 phases of interphase and undergo mitosis directly.
E. None of the above.

Option C.

Growth factor stimulate cells to divide.

Explanation:

Growth factors are substances that are found naturally which stimulate cellular growth, differentiation and proliferation and play important role in wound healing, embryonic growth and cell survival.

Examples of these growth factors are either proteins or hormones. They include neurotrophin, erythropoietin, hematopoietic, PGF, FSF and hormones that stimulate the bone marrow to produce red blood cells

the index of refraction of the second medium is higher. i just took the test trust me !

option c is the correct answer.