Why is there no competition between mixed inhibitors and substrates?

• A. Mixed inhibitors and substrates bind to the same site, but at different times.
• B. Mixed inhibitors bind to allosteric sites, which are different from the active site where substrates bind.
• C. Mixed inhibitors are too large to fit into the active site.
• D. Mixed inhibitors bind to the substrate, preventing it from binding to the enzyme.

Answer: (B)