A Brown Dwarf Is a

A brown dwarf is a

A) high-mass star surrounded by an extensive and cool atmosphere of dust and gas.
B) star of mass less than about 0.08 solar mass whose core temperature is too low to initiate hydrogen fusion.
C) type of asteroid, so named because of its color, which indicates oxidized iron, or rust.
D) star in the late phases of evolution following the red giant phase whose temperature is very low-hence the brown color.