根据短文内容，判断正(T)误(F)。

    Hello, boys and girls. I'm a Chinese girl. Ru Li is my Chinese name. Jane is my English name. I have two big

eyes, a small nose, a round face and a small mouth. My hair is long. This is my friend-Heizi. It has four short

legs and two big ears. Its mouth is wide. We are very happy (高兴).

( ) 1. Jane is Ru Li's friend.

( ) 2. Ru Li has two big eyes and a wide mouth.

(     ) 3. Heizi is Ru Li's brother (兄弟).

( ) 4. Heizi has short legs and big ears.

(     ) 5. Jane and Heizi are very happy.

某交易者以100美元／吨的价格买入12月到期，执行价格为3800美元／吨的铜看跌期权。期权到期时，标的铜价格为3750美元／吨。（不考虑交易费用和现货升贴水变化）

该交易者损益平衡点为（）美元／吨。

A.3800

B.3750

C.3850

D.3700