The question asks for the maximum Time Travel retention period in Snowflake's Standard Edition. According to Snowflake documentation and the community discussion consensus (with 100% of users selecting A and multiple comments confirming this), Standard Edition provides a maximum of 1 day for Time Travel data retention. This is a fundamental difference between Snowflake editions - Standard Edition offers 1 day, while Enterprise Edition and higher can extend up to 90 days. The other options (7 days, 30 days, 90 days) are not available in Standard Edition.