L-Dopa and D-Dopa, Shown Below, Are an Example of a Pharmaceutical

L-dopa and D-dopa, shown below, are an example of a pharmaceutical drug that occurs as enantiomers, or molecules that

A) have identical three-dimensional shapes.
B) are mirror images of one another.
C) are structural isomers.
D) are mirror images of one another and have the same biological activity.
E) are cis-trans isomers.