本题考查“星期二”名称的起源。
The Anglo-Saxons brought their own Teutonic religion to Britain. Among their gods were Tiu, the god of war, Woden, king of heaven, Thor, the god of Storms, and Freya, goddess of peace. The names Tuesday, Wednesday, Thursday and Friday derive from these gods.
盎格鲁撒克逊人把他们自己的日耳曼宗教带到了英国。他们的神中有战争之神提尔、众神之王沃登、雷霆之神托尔和和平女神弗丽嘉。星期二、星期三、星期四和星期五的名称分别由这些神的名字衍生而来。

那么星期二(Tuesday)则由战争之神提尔(Tiu, the god of war)的名字衍生而来。故选择B选项。