Given a database with Self-Tuning Memory Manager (STMM) enabled, what will DB2 do when a new buffer pool is created using the IMMEDIATE option? 

Attempt to create the buffer pool and immediately request additional memory from the operating system to allocate. If the operating system memory is not available, the buffer pool will not be created. 

Attempt to create the buffer pool and immediately allocate the memory requested, resizing the existing buffer pools and heaps as required. If there is insufficient memory in the global memory allocation for DB2, the buffer pool will not be created. 

Attempt to create the buffer pool and immediately allocate the memory requested from available database shared memory. If the memory available is not sufficient, then allocation of the buffer pool will be deferred until the database is stopped and restarted. 

Attempt to create the buffer pool and immediately request additional instance level memory. If the instance level memory is not available, then creation of the buffer pool is deferred until the
database is stopped and restarted.