单选题 To which two great families or groups of families does the passage refer?

【正确答案】 A
【答案解析】本题为细节理解题。据第3段最后1句可确定。
[难点解析]
1.He lay and thought about that England.The England over which the Wars of the Roses had been fought:注意England前加了限定词 that、the 以及后置定语,特指某一阶段、某一属性等的英格兰。
2.deep-rutted:有很深车辙的。
3.mire:陷入。
4.bog:陷入泥沼。