有机物甲（结构如图所示）是合成西洛他唑（商品名platal)的重要中间体，也是合成抗血栓药、哮喘药、强心药等药的重要中间体。下列对它的分析合理的是

A．甲分子中可能所有原子共平面

B．甲分子的分子式是C₉H₆O₂N

C．甲分子遇FeCl₃溶液呈现紫色

D．1 mol甲最多可以分别和1 mol NaOH、1 mol Br₂反应

A trader has a long position in a wheat future contract: The initial margin is $ 5000. The maintenance margin is $ 3750. There are 5000 bushels in each wheat contract. On July 10, the price is $ 2.00 per bushel. What is the price at which the trader will receive a maintenance margin call

A．

B．

C．