What Is the Dominant Mechanism by Which Energy Is Transported

Multiple Choice

What is the dominant mechanism by which energy is transported through the outer regions of the solar interior?

A) highly penetrating neutrinos streaming outward through the Sun's material-particle transport of energy
B) photons transferring between nuclei and atoms-radiative transport of energy
C) collisions of faster-moving particles with slower-moving particles-conductive transport of energy
D) hotter gas rising and cooler gas falling-convective transport of energy