Which of the following statements is true

A．People cannot do without the wholesaler's function.

B．The function of the wholesaler does not add to the cost of goods.

C．The wholesaler helps to reduce the price of goods in shops.

D．The wholesaler is well paid for his commercial service.

肝气郁滞之聚证，治疗宜选

A．五积散

B．木香顺气散

C．逍遥散

D．失笑散