Answer: B

This question examines the functions and main treatment syndromes of Ruyongquan Powder, Wuji Baifeng Pills, and Fuyanping Capsules. ① Xiaru Yongquan Powder: functions to soothe the liver, nourish blood, and regulate breasts. It is mainly used to treat postpartum lactation due to liver qi stagnation. Symptoms include insufficiency of postpartum milk, breast swelling, hardness and pain, chest tightness and hypochondriac swelling. ②Wuji Baifeng Pill: Functions to nourish qi and blood, regulate menstruation and stop vaginal bleeding. It is mainly used to treat deficiency of Qi and blood, thin body, soreness and weakness of waist and knees, irregular menstruation, metrorrhagia and vaginal bleeding. ③Fuyanping Capsule: Its functions are to clear away heat and detoxify, remove dampness and stop bandages, kill insects and relieve itching. It is mainly used to treat leucorrhea and vulva pruritus caused by damp-heat injection, with symptoms such as excessive vaginal discharge, yellow color and smell, and vaginal itching; vaginitis and vulvitis caused by trichomonas, molds, and bacteria with the above syndromes. Among other alternatives: Bazhen Yimu Pills are mainly used to treat irregular menstruation caused by Qi and blood deficiency and blood stasis; Chanfukang Granules are mainly used to treat postpartum lochia caused by Qi deficiency and blood stasis.