In a scenario where both substrate and competitive inhibitor are present, what determines which molecule binds to the enzyme's active site?

• A. The molecule with lower concentration will bind to the enzyme's active site.
• B. The molecule with higher concentration will bind to the enzyme's active site.
• C. The molecule with lower affinity for the enzyme will bind to the enzyme's active site.
• D. The molecule with higher affinity for the enzyme will bind to the enzyme's active site.

Answer: (B)