Trivia Question 19 Answer
The answer is B (photon)-sort of, although it can be considered it's own anti-matter. Photons, including gamma rays and x-rays have no charge (an no mass). Any charged particle has an anti-matter counterpart. In radiology, the counterpart of an electron, the positron is used for PET imaging. As a charged particle, the proton also has an anti-matter counterpart. A neutron has a baryon charge, also with anti-matter counterpart.
The subatomic world is more bizarre and complicated than this still. If an electron and positron collide, the result can be production of two photons (511 KeV) moving in 180 degree opposite directions. An experimental test of two photons colliding head-on has shown this can, in reverse, produce an electron and positron matter/anti-matter pair.
Reference
Adam J et al. Measurement of e+e- momentum and angular distributions from linearly polarized photon collisions. Phys. Rev. Lett. 127;2021