Most of the 40 Deadliest Disasters Between 1970 and 2012

Most of the 40 deadliest disasters between 1970 and 2012 occurred in a belt running from China and Bangladesh through India and Iran to Turkey.This area was particularly vulnerable because __________________.

A) it has a high population density
B) most of the world's earthquakes and volcanic eruptions occur here
C) precipitation rates are very high in this region,producing frequent,large,and sudden floods
D) lightening producing thunderstorms are more common in these regions
E) fires are more common in these regions