Changing the design of a new product may the risk of its production in the market.
A. bring about
B. e about
C. bring up
D. e up
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(答案→)A. bring about
B. e about
C. bring up
D. e up
解析：A 考察动词短语辨析。Bring about引起；e about发生；bring up抚育，提出；e up走近，开始；由语境可知，此处是指改变新产品的设计也许会赢钱市场上销量下降的危险。故A正确。