Why is the preparation of a candidate referred to as being "divested of all minerals and metals"?

The preparation of a candidate being referred to as "divested of all minerals and metals" symbolizes equality among candidates. By removing these items, which can be interpreted as wealth or status represented by material possessions, the ritual emphasizes that all candidates come into the fraternity as equals. Regardless of their social or economic background, this practice removes external markers of distinction, allowing them to engage in the Masonic journey from a level playing field.

While the other options may hold significance within Masonic practices, the focus on equality through the stripping away of possessions particularly highlights the foundational concept that within the lodge, all members are brothers, irrespective of their worldly possessions or distinctions.