In the Parable of the Talents (Matthew 25:14-30), what theological principle is primarily illustrated by the master's condemnation of the servant who buried his talent?

A The importance of risk-taking in financial investments. B The inherent wickedness of hoarding wealth instead of spending it. C The expectation of faithful stewardship and proactive use of gifts and resources entrusted by God. D The justification of social inequality based on differing levels of inherent ability.