The Main Reason That Led to the Collapse of the Oldest

The main reason that led to the collapse of the oldest merchant bank in England, Barings Bank, in 1995 after 233 years of existence was...

A) A bank run.
B) A change in the board of directors, which caused a confidence crisis among the public.
C) An unauthorized speculation by one employee on future contracts.
D) The Kobe earthquake in Japan, which led to a financial crisis in Asia and hence, severely affected the bank's activities.