My wife and I took # 742 to Barcelona ( July 22 ) and returned August 3 on # 715 from Venice . We traveled in economy . Both flights had the worst food we have ever experienced on a domestic or international flight . This was in addition to the antiquated entertainment system and lousy service . Leaving we sat on the plane for one and 1/2 hours with no air conditioning . How long can this airline survive --- Any one else could not be worse .

Question with options to choose from: What leads the speaker to question the amount of time that the airline can survive ?
Available options: [I] They provide abysmal customer service and accommodations and no one will want to use them as an airline. [II] They have been responsible for two fatal crashes in the past five years and may be getting shut down. [III] They are declaring bankruptcy and the speaker is worried that they wo n't be around much longer. [IV] They can not afford to hire enough pilots to keep the airline running on schedule so they will have to close.
[I]