An inhibitor binds to a free enzyme preventing it from being able to react with the substrate. That same inhibitor is also able to bind to the enzyme-substrate complex, preventing the enzyme from turning the substrate into product. What type of inhibitor could this be ________.
I. Uncompetitive
II. Noncompetitive
III. Mixed
1) I Only
2) II Only
3) I and II Only
4) II and III Only