The question asks for the minimum Snowflake edition required to apply masking policies for dynamic data masking. According to Snowflake documentation and the community discussion consensus (with 100% agreement and upvoted comments), masking policies are a feature of Dynamic Data Masking that is only available starting from the Enterprise Edition. The Standard Edition does not include this security feature, while Business Critical and VPS are higher-tier editions that also support it but are not the minimum required. Therefore, Enterprise is the correct minimum edition.