Which of the Following Best Describes an E2 Reaction Mechanism

Which of the following best describes an E2 reaction mechanism?

A) The leaving group leaves,resulting in a carbocation,following by deprotonation of the â hydrogen and formation of a ð bond.
B) The â hydrogen is deprotonated,resulting in a carbocation,followed by loss of the leaving group and formation of a ð bond.
C) The â hydrogen is deprotonated and the leaving group leaves simultaneously,leading to the formation of a ð bond.
D) The â hydrogen is deprotonated,resulting in a carboanion,followed by loss of the leaving group and formation of a ð bond.