Given the stream of consciousness rationale, provide a reasonable question and answer. Rationale: Mutations may change the structure of a chromosome or just change a single nucleotide. DNA is made up of nucleotides. Mutations change DNA.
 The question and answer:
What do mutations do to dna?
Options:
- (A) It expands
- (B) Damages them
- (C) negative
- (D) Moisturize it.
- (E) Help it.
- (F) Destroy it.
- (G) It decreases
- (H) Change it.
The answer is (H)