Choose your answer: Is "The prime minister sits in the cabinet solely by virtue of occupying another office, either First Lord of the Treasury (office in commission), or more rarely Chancellor of the Exchequer (the last of whom was Balfour in 1905)." a good answer to the question "When was prime minister first mentioned in a government document in the UK?"
Choose your answer from:
[a]. yes;
[b]. no;
[b].