The -amino acids have a carboxyl group with a pK around __________ , and an amino group with a pK near __________ .

The -amino acids have a carboxyl group with a pK around __________ ,

1.	The -amino acids have a carboxyl group with a pK around __________ , and an amino group with a pK near __________ .
A.	1.1, and 12.1
B.	6.5, and 8.0
C.	3.3, and 10.5
D.	2.2, and 9.4
Answer» E.