Final answer:
The Mosaic Code, as divinely given commandments and rules, could only be changed by God, which corresponds with option 'D) By God'. it is not subject to alteration by human processes like voting or decision-making by leaders.
Step-by-step explanation:
The question relates to how the Mosaic Code could be changed. The Mosaic Code, according to the Hebrew Bible, consists of the commandments and rules given to Moses by Yahweh, which were to be followed by the Hebrews. this religious code is intricately linked to the covenant between Yahweh and the Hebrew people. Given its biblical origins and divine attribution, the change of such a code falls outside human legislative processes.According to the context provided, the answer to how the Mosaic Code could be changed is 'D) By God'.
This is because the code is considered as divinely given through the prophet Moses and, as such, is not subject to human modification through voting or leadership decision unless such changes are conveyed through prophetic revelation or divine mandate.