What Happens Quite Often to the Number of Normal Receptors

What happens quite often to the number of normal receptors in the plasma membranes of malignant cells as compared to normal cells?

A) Malignant cells usually have the same number of receptors in their plasma membranes as normal cells.
B) Malignant cells usually have a much larger number of plasma membrane receptors than normal cells.
C) Malignant cells usually have a much smaller number of plasma membrane receptors than normal cells.
D) Malignant cells usually have no plasma membrane receptors,while normal cells have them.
E) None of these are correct.