What is carcinoma?

Oral cancer may be caused by

Identify the odd one out in the context of diseases.

Neoplastic characteristics of cells refer to:
$A.$ $A$ mass of proliferating cells
$B.$ Rapid growth of cells
$C.$ Invasion and damage to the surrounding tissue
$D.$ Those confined to original location
Choose the correct answer from the options given below:

Identify the incorrect statement regarding cancer types.

The biological response modifier that activates the immune system of a cancer patient and helps in destroying the tumor is ..........