Enzymes Are Very Specific in Their Choices of Substrates Because

Enzymes are very specific in their choices of substrates because each different enzyme has an active site that

A) depends on unusual amino acids not common in proteins.
B) has a certain unique amino acid to fit each substrate.
C) is shaped to fit a certain substrate molecule.
D) is lined with glycolipids and glycoproteins.
E) passes electrons from one part of the substrate to another.