In the Collapsing Core of a High-Mass Star Just Before

Multiple Choice

In the collapsing core of a high-mass star just before a supernova explosion occurs, the density is about that

A) of degenerate gases in white dwarf stars, about 10⁹ kg/m³.
B) of nuclear matter in a normal nucleus, about 4 *10¹⁷ kg/m³.
C) at the center of the Sun, about 1.5 *10⁵ kg/m³.
D) of iron, 7.5 *10³ kg/m³.