After Lysozyme Binds Its Substrate,the Enzyme Undergoes a Conformational Change

Multiple Choice

After lysozyme binds its substrate,the enzyme undergoes a conformational change that distorts residue D in the substrate.Which of the following best describes this distortion?

A) from a chair to a half-chair conformation
B) from a half-chair to a chair conformation
C) from a chair to a boat conformation
D) from a boat to a chair conformation
E) from a boat to a half-chair conformation