Place These Steps of Enzyme Catalysis in the Correct Order

Multiple Choice

Place these steps of enzyme catalysis in the correct order: 1. The substrate and enzyme change shape.
2) The substrate enters the active site.
3) The enzyme reverts to its original configuration.
4) The product is expelled.

A) 2, 3, 1, 4
B) 2, 1, 3, 4
C) 1, 3, 4, 2
D) 2, 1, 4, 3
E) 1, 2, 3, 4