MATCH a Structure from the List Below to Each of the Following

MATCH a structure from the list below to each of the following terms. Place the letter of the structure in the blank to the left of the term which it describes.
-_____ is an amino acid in its zwitterionic form.

A)
B)
C) Val−Phe−Leu−Met−Tyr−Pro−Gly−Trp−Cys−Glu
D)
E)
F) Asp−Tyr−Ile−His−Pro−Phe−Arg−Val
G) BOC group
H)
I)
J)
K)
L) Val−Lys−Phe−Gly−Arg−Met−Arg−Phe
M) Z group