Final answer:
A supernova remnant is likely to contain the most silver and gold, as supernova explosions create heavy elements and disperse them into space.
Step-by-step explanation:
The object likely to contain the most silver and gold is B) a supernova remnant. Supernova explosions are catastrophic events at the end of a star's life cycle, during which heavy elements like silver and gold are formed through the process of nucleosynthesis. In these extraordinarily energetic events, the core of a massive star collapses and the outer layers are expelled into space, leaving behind these heavier elements. Supernovae are responsible for dispersing these newly created elements into the interstellar medium.
For example, the supernova explosion that leaves behind a neutron star would involve temperatures and pressures high enough for the creation of these heavy elements. In contrast, a white dwarf or a M-type main sequence star would not typically produce such heavy elements.