问题详情

Which statement is NOT true according to the letter？
A．Comparative studies of seat-mile costs are invalid unless they compare similar aircraft over identical sectors.
B．Asian carriers are not looking for more access to its domestic market.
C．U.S. carriers have added anything in terms of price, innovation or seat availability in peak seasons.
D．U.S. carriers with less regional rights will further make the economic opportunities unavailable.请帮忙给出正确答案和分析，谢谢！