【名词&注释】
川楝子(chinaberry fruit)、清热解毒(heat-clearing and detoxifying)、青木香(radixaristolochiae)、消肿止痛(detumescence analgesic)、总死亡率(total mortality)
[单选题]克罗恩病的总死亡率(total mortality)为()
A. 10%~15% B. 15%~20% C. 5%~10% D. 20%~25% E. 5%以下