单选题 What are the advantages of lean production?

A、 Fewer detects are produced.
B、 It avoids the high cost of craft production.
C、 It produces products in enormous variety.
D、 All of the above.

【正确答案】 D

【答案解析】[解析] 从文章第四段第二行avoiding the high cost of the former and the rigidity of the latter，第五段第二、三行to produce volumes of products in enormous variety，第六段第四行results in many fewer defects可知答案应选D。