When Looking at the Economic Impact of the Terrorist Attacks

When looking at the economic impact of the terrorist attacks, the initial claim by Osama Bin Laden that the cost to the U.S. would be $1 trillion

A) was viewed at the time to be too high, but in retrospect, is actually too low.
B) was viewed at the time to be too high, but in retrospect, is actually about right.
C) was viewed at the time to be about right.
D) was viewed at the time to be too low.