What Stops the Sun from Collapsing Under the Force of Its

What stops the Sun from collapsing under the force of its own gravity?

A) The interior of the Sun is under such high pressure that it is a liquid, and liquids are incompressible.
B) Neutrinos from the Sun's core collide with gas atoms and prevent them from falling inward.
C) Ions and electrons in the Sun are pushed apart by the electric forces between their charges.
D) The Sun is held up by gas pressure due to the very high temperature inside it.