If auto-suspend is enable for a Virtual Warehouse, he Warehouse is automatically suspended when:

If auto-suspend is enable for a Virtual Warehouse, he Warehouse is automatically suspended when:
A . All Snowflake sessions using the warehouse are terminated.
B . The last query using the warehouse completes.
C . There are no users loaned into Snowflake.
D . The Warehouse is inactive for a specified period of time.

Answer: D