It is crucial that the process of mitosis is error free. this is because otherwise healthy cells can
grow into giant super cells.
undergo meiosis.
become cancer cells.
produce two identical cells.

The best and most correct answer among the choices provided by the question is the third choice "become cancer cells."

During mitosis one cell divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.

I hope my answer has come to your help. God bless and have a nice day ahead!