What Happened to the Quarks That Existed Freely During the Particle

Multiple Choice

What happened to the quarks that existed freely during the particle era?

A) They combined in groups to make protons,neutrons,and their antiparticles.
B) They froze out of the soup of particles at the end of the era.
C) They evaporated.
D) They combined in groups to make electrons and neutrinos.
E) They combined in groups to make W and Z bosons.