患者男性，40岁。外伤所致左侧胫腓骨骨折，复位后给予小腿管型石膏外固定，患者主诉石膏内有持续性局部疼痛。

患者可能出现的问题是（）

A.石膏综合征

B.化脓性皮炎

C.骨筋膜室综合征

D.伤口感染

E.石膏压疮

Before disseminating changes in his firm’s buy/sell list. Johnson, a CFA candidate, calls his best clients to apprise them of the pending change. Based on the AIMR Standards of Professional Conduct, what standard, if any, did Johnson violate（）

A. Standard Ⅲ (B), Fair Dealing. 

B. Standard Ⅳ (B), Priority of Transactions. 

C. Standard Ⅱ (A), Prohibition Against Use of Material Nonpublic Information.