题目内容：
根据以下材料，回答问题。
Why is arteriosclerosis more dangerous than other diseases?
A．Because the patient’s artery will narrow when he suffers from it．
B．Because the patient’S artery will harden when he suffers from it． ┠考试大^o^在线^*^考试中心┨
C．Because the patient’S artery wilt widen when he suffers from it．
D．Because the fatty materials in the patient artery will block the flow of blood，SO it will reduce the heart’S blood supply．
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答案解析：