Which of the Following Statements Is TRUE

Which of the following statements is TRUE?

A) Alkenes are as unreactive as alkanes.
B) Electrophilic addition reactions proceed via either an E1 or E2 mechanism.
C) The first step of an H-X electrophilic addition is the formation of a carbanion.
D) Carbon-carbon double bonds are electron rich and are nucleophilic.
E) During the addition of an H-X molecule, the H atom behaves as a nucleophile while the X atom behaves as an electrophile.