You encounter a wait situation while running a BACKUP SYSTEM utility. Which two processes
might contribute to this wait situation? (Choose two.)

A.
CREATE TABLESPACE TS1 NUMPARTS 25 SEGSIZE 4 IN DATABASE DB1

B.
LOCK TABLE TB1 PARTITION 5 IN EXCLUSIVE MODE

C.
SELECT * FROM TABLE TB1 WITH RR

D.
SET CURRENT DECFLOAT ROUNDING MODE=ROUND_CEILING

E.
TRUNCATE TABLE TB1 DROP STORAGE