El Niño
You chose answer D.
The southern hemisphere's premier El Niño-tracking
station, located in the Falkland Islands, was disabled
during the war there between Argentina and England. As a
result, key information that might have helped scientists
foresee the coming El Niño was not available.
There is no major El Niño-tracking station in the
Falkland Islands. And before you go building one, remember
that El Niño originates in the Pacific Ocean, while
the Falklands are in the Southern Atlantic.
Give it another try.