【单选题】

It can be inferred from the passage that economic theory as it presently stands would most likely apply to which of the following situations
A．(A) A parliamentary system, where senior members vote by secret ballot.

B．(B) An arts guild, where voting authority is determined by the level of skill at a craft.
C．(C) A fan club, where a president elects other members of the club.
D．(D) A board of trustees group, where all members vote to make company decisions. E) A monarchy, where a king consults his vassal lords before making decisions.