Which of the Following Characteristics Allows the CRISPR Cas9 Enzyme

Multiple Choice

Which of the following characteristics allows the CRISPR Cas9 enzyme to be an effective way to generate mutations that block the function of a specific protein (knock out) ?

A) It makes double stranded breaks in DNA throughout the genome.
B) It's function is regulated by a complementary guide RNA.
C) It forms a complex with DNA.
D) It removes random DNA bases.