Final answer:
Mutants respond better to G-CSF because the data indicate higher fold increases.
Step-by-step explanation:
The correct answer is: I think mutants respond better to G-CSF because the data indicate higher fold increases.
The evidence in the data shows that mutants have a higher fold increase compared to the control group after G-CSF treatment. This suggests that mutants have a better response to G-CSF. The data supports this inference because it is consistent with the observed results.