C选项错在哪里

问题如下：

A trader who owns shares of a stock currently trading at $100/share places a “GTC, stop 90, limit 85 sell” order (GTC = Good till cancelled). Assuming the specified stop condition is satisfied and the order becomes executed, which of the following statements is the most accurate?

选项：

A.

The trader faces a maximum loss of 15

B.

The order will be executed at the exact price, either 90 or 85

C.

The order becomes a market order when the price falls below 85 and remains valid for execution

解释：

The order becomes valid when the price falls to or below 90. But, the “limit 85” makes the order invalid if the price falls below 85. Thus, the trader faces a maximum loss of 15.