Which of the Following Statements About Cancer Cells Is Incorrect

Which of the following statements about cancer cells is incorrect?

A) They arise only when multiple independent mutations occur within the same cell.
B) They lack the ability to perform the specialized functions of the normal cell-type from which they mutated.
C) The body has no means by which to defend against them.
D) They usually do not adhere well to neighboring cells, so some of them may break away from the parent tumor.
E) They arise only when multiple independent mutations occur within the same cell, and they usually do not adhere well to neighboring cells, so some of them may break away from the parent tumor.