Answer: MONITOR

The correct answer is A (MONITOR) because Snowflake documentation and community consensus confirm that the MONITOR privilege on a virtual warehouse is specifically required to view its load monitoring chart. This privilege allows users to monitor warehouse performance metrics, including query load and resource utilization. The other options are incorrect: B (MODIFY) is for altering warehouse properties, C (OPERATE) is for starting/stopping/suspending/resuming warehouses, and D (USAGE) is for running queries on the warehouse but does not grant monitoring access.

Author: LeetQuiz Editorial Team