Answer:
I think it cells must contain DNA
B. they make ATP from glucose molecules and use when necessary
C. How does the interaction of acids and bases relate to the cleaning products industry?
Simple,
you want a valid prediction about the results of her experiment.
B is out of the picture, leaving only A and C.
Since it's asking about a valid prediction of the results of her experiment then the only logical answer is C.
Thus, your answer.