How would you determine the size of the virtual warehouse used for a task?

How would you determine the size of the virtual warehouse used for a task?
A . Root task may be executed concurrently (i.e. multiple instances), it is recommended to leave some margins in the execution window to avoid missing instances of execution
B . Querying (select) the size of the stream content would help determine the warehouse size. For example, if querying large stream content, use a larger warehouse size
C . If using the stored procedure to execute multiple SQL statements, it’s best to test run the stored procedure separately to size the compute resource first
D . Since task infrastructure is based on running the task body on schedule, it’s recommended to configure the virtual warehouse for automatic concurrency handling using Multi-cluster warehouse (MCW) to match the task schedule

Answer: C