Which ones go together! I didn't see any questions with exactly this format but…

Which ones go together! I didn't see any questions with exactly this format but it's similar to multiple choice.
A.
complementary strands
B.
hydrogen bonds between constituents of the polypeptide backbone
C.
multiple polypeptides coming together
D.
covalent attachment of carbohydrates
antiparallel sequence
secondary structure
Quaternary structure
glycoprotein
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