One Frequent Challenge with a Unitary System of Government Is

One frequent challenge with a unitary system of government is hypercentralism, which means that

A) an unhealthy and unusually excessive level of control exists in the central government.
B) multiple layers of government exist at the central level.
C) a multi-chambered parliament is unable to respond to needs of the constituency.
D) there is complete reliance on the central government and the extinguishing of individual state differences, which hampers local officials from appropriately responding to needs.
E) the elected officials who serve the central government exert abusive authority over the citizens.