In SQL, which command(s) is(are) used to redefine an index's future storage allocation

In SQL, which command(s) is(are) used to redefine an index's future st

1.	In SQL, which command(s) is(are) used to redefine an index's future storage allocation
A.	ALTER INDEX
B.	REDEFINE INDEX
C.	MODIFY INDEX
D.	DO INDEX
Answer» B. REDEFINE INDEX