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　　All sorts of firms are changing their inputs and processes and designing products that spare the environment, while helping suppliers do the same. IKEA, a Swedish retailer, will have invested or committed to invest €1.5 billion ($1.7 billion) in wind and solar power by the end of 2016, and the firm and its charitable foundation have just pledged a further €1 billion to developing renewable energy and to helping people in places affected by climate change. Firms say that besides savings from great erenergy efficiency they gain less quantifiable benefits from an enhanced reputation, a motivated workforce and the like. But big, disruptive investments in new energy sources or industrial techniques may take years to justify their costs, if they ever do. Is greenery paying off?

　　The IKEA Company is mentioned to show that________

　　(A) it is crucial to invest in disruptiveand motivated workforce.

　　(B) the company can earn much from the enhanced reputation.

　　(C) the firms have made their producing method more sustainable.

　　(D) it is hard to tell the greenery ispaying off or not in years to come.

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