Which of the following best describes airline safety: Question 9 options: 1) Aircraft accidents have increased during the last decade due to the use of smaller aircraft, an aging FAA control system, and an increasing number of aircraft in US airspace 2) Safety has greatly improved; however, air travel continues lag behind bus and rail passenger 3) Air travel was considered to be the safest mode of passenger transportation until the events of September 11, 2001 and subsequent aircraft accidents (TWA and ValueJet) occurring during this decade. 4) Air travel remains the safest mode for passenger travel. 5) Airline safety has improved; however, the improvements have resulted from the airlines flying fewer aircraft and less people flying