Task: Instance Description Understanding (ontology: Earth_Environment/SWEET)

Which of the following definitions best describes the instance 'central dense overcast'?

A. The ratio of the Volume of water which the porous medium, after being saturated, will retain against the pull of gravity to the volume of the porous medium.
B. The region of dense cloud near the core of a tropical cyclone.
C. the instance climate classification is charactericized by year-round precipitation and having 1 - 3 months with temperatures above 10 degree C.
D. When the direct radiation is not blocked by clouds, it is experienced as sunshine, a combination of bright light and heat.

Answer: The region of dense cloud near the core of a tropical cyclone.