CRISPR Is Considered an Example of Adaptive Immunity in Bacteria

CRISPR is considered an example of adaptive immunity in bacteria and archaea because it

A) methylates host DNA and destroys invading DNA.
B) requires host "pac" sites in order to destroy invading DNA.
C) minimizes damage from foreign DNA by using guide RNA similar to the invader and cas proteins to cleave the foreign DNA.
D) prevents the production of cell surface receptors that allow phages to get into the cell.
E) prevents archaeal DNA from infecting bacteria.