Which of These Is TRUE Biosphere 2

Which of these is TRUE Biosphere 2?

A) It was a three acre, glass enclosed ecosystem designed to test the effect of pollutants.
B) It showed that humans were capable of creating human-made substitutions for essential natural resources.
C) Its $200 million dollar budget was not sufficient to carry out its mission.
D) It was designed in the 1960s and continued to be usable through 2010.