What happens first when a star begins to run out of fuel a)the stars core shrinks b) the star becomes a black hole c) the star becomes a white dwarf d) the stars outer layer drifts away

A) The stars core shrinks
The star will contract under the weight of gravity.
When it contracts it will heat up and expand to a red giant.
When the star runs out completly of helium it would emit gasses and form a star nebula.
It would then become a white dwarf then into a black dwarf.

The short-term effect of tar on the body is increased blood pressure.