单选题 Why did wool to be the second woven material for clothes?

A、 Sheep can be raised easily and can live in varied climates.
B、 Linen was difficult to produce.
C、 People liked to wear wool.
D、 Fine linen only could be worn by rich people.

【正确答案】 A

【答案解析】[解析] 从文章最后一段第一句可知答案应选A。