Which of the Following Statements Is TRUE

Which of the following statements is TRUE?

A) Elimination reactions proceed via either an E1 mechanism, which is a one-step mechanism, or an E2 mechanism, which is a two-step mechanism.
B) The E1 mechanism is somewhat similar to the S_N1 mechanism: they both start with a dissociation step in which a carbocation is formed.
C) Primary alcohols and alkylhalides are very likely to react via an E1 mechanism because they produce stable carbocations.
D) The strength of base used in elimination reactions is not important for the E2 mechanism because the base contributes only to the second step of the E2 mechanism.
E) E2 elimination reactions can occur at primary carbon centres but not at secondary and tertiary carbon atoms.