选择题：2.It can be inferred from the passage that the dro

2.It can be inferred from the passage that the drop in Amtrak ridership was due to the fact that ________.
A) trains were not suitable for short distance passenger transportation
B) trains were not the fastest and most convenient form of transportation

C) trains were not as fast and convenient as they used to be

D) trains could not compete with planes in terms of luxury and convenience