The statement "they are not regulated by contact inhibition" best describes cancer cells. Thus, the correct option is D.
A cancerous cell may be defined as a cell that stimulated continuous growth, inhibition of apoptosis, perform metastasis, etc.
Contact inhibition is performed by the noncancerous cells to cease proliferation and growth when they contact with each other. This property is lost when any noncancerous cell is transformed into a cancerous cell.
Thus, the correct option for this question is D.
To learn more about Cancerous cells, refer to the link:
https://brainly.com/question/373177
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