Which Statement About Chirality in Amino Acids Is NOT Correct $\alpha$

Which statement about chirality in amino acids is NOT correct?

A) An amino acid is chiral if it has a carbon atom bonded to four different groups.
B) An amino acid is chiral if it cannot be superimposed on its mirror image.
C) Almost all of the amino acids found in human proteins except glycine, are chiral.
D) The $\alpha$ -carbon in an amino acid is a chiral center.
E) Almost all the amino acids found in human proteins are dextrorotary enantiomers and rotate plane-polarized light to the right.