Why Are Mutation and Recombination the Only Processes That Can

Multiple Choice

Why are mutation and recombination the only processes that can increase genetic variation?

A) They are the only processes that can produce new alleles.
B) They are the only processes that change allele frequency.
C) They are the only processes that cannot be influenced by artificial selection.
D) They are the only processes that are not random.
E) They are the only processes that can produce deleterious results.