In October 2012, why was Sandy called a "Superstorm" when it made landfall in New Jersey, instead of "Hurricane"?
a. The National Weather Service was afraid that saying "Hurricane" would scare the public.
b. Sandy set the all-time record for lowest pressure in a storm, reaching 666 mb in its eyewall.
c. Sandy experienced "extratropical transition" and no longer possessed fully tropical characteristics.
d. Intense tropical cyclones in the north Atlantic Ocean are officially called "Superstorms."