What Happens to the Positron Created During the P-P Chain

Multiple Choice

What happens to the positron created during the p-p chain of nuclear reactions inside the Sun?

A) it merges with a proton to become a deuterium (heavy hydrogen) nucleus
B) it quickly collides with an electron and turns into gamma-ray energy
C) it ultimately forms an anti-helium nucleus
D) it turns quickly into a neutrino, which can escape from the Sun
E) it just sits there at the core of the Sun for billions of years, unable to interact
Section 16.3: The Solar Interior: Theory