According to Snowflake documentation and the community discussion with high upvotes, a tag can have only one masking policy for each data type that Snowflake supports. This is explicitly stated in the official documentation referenced in the discussion comments. Option A is incorrect because tags cannot be dropped while masking policies are assigned to them. Option C is incorrect because a tag cannot have multiple masking policies for the same data type. Option D is incorrect because while a tag can have masking policies for different data types, it's limited to one policy per data type, not multiple policies with varying data types.