Which of the Following Does Not Characterize the Curved Arrow

Multiple Choice

Which of the following does not characterize the curved arrow formalism?

A) The arrow shows the movement of electrons not atoms.
B) The atom at the head of the arrow is the electron pair acceptor.
C) The atom at the tail of the arrow is a Lewis acid.
D) The species containing the atom at the head of the arrow will have the smaller pK_a.
E) All of these correctly describe the curved arrow formalism.