The Importance of Clonal Deletion Is That ________

The importance of clonal deletion is that ________.

A) lymphocytes with receptors that recognize self markers are eliminated to preserve immune tolerance
B) worn-out lymphocytes are destroyed to make way for new cells
C) lymphocytes that have been activated during antigen exposure are then removed when the individual recovers
D) clones of cells that have the same receptor are deleted to avoid redundancy