What Would Be the Consequence(s)of a Mutation That Did Not

Multiple Choice

What would be the consequence(s) of a mutation that did not allow for selection against self-responding lymphocytes (those that respond against self) ?

A) The immune system would fail and the individual would catch many illnesses.
B) This would likely be a fatal condition as the lymphocytes would attack all self cells.
C) The lymphocytes would be more likely to recognize antigens they had previously been exposed to.