单选题 Which of the following procedure is NOT specifically explained as a guarantee of good quality for Scottish Borders Cashmere?

A、 Its raw material from the best producers.
B、 Its sorting out the inferior from the superior.
C、 Its milling with special water.
D、 Its spinning of Borders' traditional skill.

【正确答案】 D

【答案解析】此题问的是“哪一个没有特别解释”。文中从第1段起提出了这个问题：What makes Scottish Borders Cashmere so special?紧接其后的三段从原材料、去粗取精的加工过程及洗涤三方面详细地解释了这一问题。只是Spinning，一笔带过，因此D为正确答案。