Why Can't the Dark Matter in Galaxies Be Made of Neutrinos

Multiple Choice

Why can't the dark matter in galaxies be made of neutrinos?

A) There are not enough neutrinos to make up all the dark matter.
B) Neutrinos do not have any mass;they interact only through the weak force.
C) We know that dark massive objects such as planets and neutron stars are not made of neutrinos.
D) Neutrinos travel at extremely high speeds and can escape a galaxy's gravitational pull.
E) Big Bang nucleosynthesis constrains how many neutrinos there are in the Universe.