With Regard to the British Political System, Which of the Following

With regard to the British political system, which of the following is incorrect?

A) The British system is one of separation of powers.
B) Great Britain represents a case of successful transition from a highly centralized government controlled by the monarchy to a Western democratic political culture.
C) Whereas the British Parliament formally enacts legislation, most legislation originates in the cabinet.
D) Within the government, the party out of power is known as the loyal opposition.