Which statements are true of a white dwarf?

It has a red shell.

It is the result of the core collapse of a low-mass star that sheds its outer layers.

It emits massive amounts of light compared with other stars.

It strongly attracts all matter or energy that comes near it.

It cools down to become a black dw

All five statements are correct. A white dwarf was initially a swollen up red star, which eventually shed their outer layers to become a super-dense white dwarf. This does not happen to all stars. It only happens when low-mass stars such as the sun collapse and eventually shed their outer layers. It is so dense that it has a great gravitational field and hence attracts matter near it. Eventually the white dwarf cools down by radiating away all its energy and becomes a black dwarf.