[单项选择]　　Cooperatbive competition. Competitive cooperation. Confused Airline alliances have travellers scratching their heads over what’’s going on in the skies. Some folks view alliances as a blessing to travellers, offering seamless travel, reduced fares and enhanced frequent-flyer benefits. Others see a conspiracy of big businesses, causing decreased competition, increased fares and fewer choices. Whatever your opinion, there’’s no escaping airline alliances: the marketing hype is unrelenting, with each of the two mega-groupings, Oneworld and Star Alliance, promoting itself as the best choice for all travellers. And, even if you turn away from their ads, chances are they will figure in any of your travel plans. By the end of the year, Oneworld and Star Alliance will between them control more than 40% of the traffic in the sky. Some pundits predict that figure will be more like 75%in 10 years. 　　But why, after years of often ferocious competition, have airlines decided to band together L
A. Delight.
B. Indifference.
C. Objection.
D. Puzzlement.