A) Covalent bonds are a common interaction used in molecular recognition.
B) Molecular recognition takes place only between protein molecules.
C) For molecular recognition to occur, complementarity of the molecules is required.
D) Hydrogen bonds are not effective mediators of molecular recognition due to their low strength.
E) None of the above are correct.

A) It can form up to five bonds by sharing its electrons.
B) It forms only single bonds.
C) It provides low bond energy.
D) It forms stable covalent bonds by electron pair sharing.
E) It does not usually bond to other carbons, allowing a more diverse combination of elements.

A) hydrophobic interactions.
B) covalent bonds.
C) hydrogen bonds.
D) non-spontaneous assembly.
E) ionic interactions.