Answer: External functions, Fail-safe

The question asks for two features available in Snowflake Standard Edition. Based on the community discussion with 100% consensus and upvoted comments, External functions (B) and Fail-safe (D) are included in Standard Edition. External functions allow calling external code from SQL, and Fail-safe provides a 7-day recovery period beyond Time Travel. Materialized views (A), Multi-cluster virtual warehouses (C), and Row-level security (E) require Enterprise Edition or higher, making them unsuitable for Standard Edition.

Author: LeetQuiz Editorial Team